USBiological 1 - Products
Worldwide
Our biochemicals, antibodies, recombinant proteins, cell culture media and molecular biology kits are used in virtually all scientific applications.From affordable research quantities to larger bulk amounts.
| Product | Description | |
|---|---|---|
| L-Arabinose | L(+)-Arabinose is a pentose monosaccharide whose transcription is regulated by Ara-C proteins and is a substrate for L-arabinose dehydrogenase, galactose dehydrogenase. It is not fermented by yeast. Used as a one-way or reversible switch for protein expression. It is also used to make arabinosyl nucleosides. L-Arabinose is used as a substrate to identify, differentiate and characterize pentose sugar isomerase(s). L-Arabinose is used in the bioproduction of L-ribose. L-Arabinose is the naturally occurring isomer and is a constituent of plant polysaccharides. Most bacteria contain an inducible arabinose operon that codes for a series of enzymes and transporters that allows L-arabinose to be used as the sole carbon source in microbial culture. Group: Biochemicals. Alternative Names: Beta-L-Arabinopyranose; Beta-L-(+)-ARABINOSE; L-(+)-Arabinose; Pectinose; Arabitol, L-(-)-(RG); L-Arabinopyranose; (2R,3R,4S,5S)-oxane-2,3,4,5-tetrol. Grades: Reagent Grade. CAS No. 87-72-9. Pack Sizes: 100g, 500g, 1Kg, 2.5Kg. Molecular Formula:?C5H10O5 , Molecular Weight:?150.13. US Biological Life Sciences. |  Worldwide |
| L-Arginine Free Base (H-Arg-OH) | Arginine (abbreviated as Arg or R) encoded by the codons CGU, CGC, CGA, CGG, AGA, and AGG is an ?-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated -+NH3 form under biological conditions), an α-carboxylic acid group (which is in the deprotonated -COO- form under biological conditions), and a side chain of a 3-carbon aliphatic straight chain capped by a complex guanidinium, classifying it as a charged (at physiological pH), aliphatic amino acid. Arginine is classified as a semiessential or conditionally essential amino acid, depending on the developmental stage and health status of the individual. Group: Biochemicals. Alternative Names: 2-Amino-5-guanidinopentanoic acid; L-(+)-Arginine; L-Arg; H-Arg-OH. Grades: Cell Culture Grade. CAS No. 74-79-3. Pack Sizes: 100g, 500g, 1Kg, 2.5Kg. Molecular Formula: C6H14N4O2, Molecular Weight: 174.2. US Biological Life Sciences. | Worldwide |
| L-Arginine Hydrochloride | An essential amino acid for human development. Precursor for nitric oxide. Ammonia detoxicant (hepatic failure); diagnostic aid (pituitary function). Group: Biochemicals. Alternative Names: L-Arginine Monohydrochloride; Argamine; Arginine Hydrochloride; Arginine Monochloride; Arginine Monohydrochloride; Argivene; Detoxargin; L-(+)-Arginine Monohydrochloride; Levargin; Minophagen A; NSC 203450; NSC 7914; R-Gene. Grades: Cell Culture Grade. CAS No. 1119-34-2. Pack Sizes: 100g, 500g, 1Kg, 2.5Kg. Molecular Formula: C?H??ClN?O?, Molecular Weight: 210.66. US Biological Life Sciences. | Worldwide |
| L-Ascorbic Acid 6-Stearate | L-Ascorbic Acid 6-Stearate is used to specifically target anti-tumoral dehydrocrotonin nanoparticles. Group: Biochemicals. Grades: Highly Purified. CAS No. 10605-09-1. Pack Sizes: 50mg, 250mg. Molecular Formula: C24H42O7, Molecular Weight: 442.59. US Biological Life Sciences. | Worldwide |
| L-Asparagine, Anhydrous (L-Asn-OH) | L-Asparagine, Anhydrous (L-Asn-OH). Group: Biochemicals. Alternative Names: L-Asn-OH; (S)-2-Aminosuccinic acid 4-amide; L-Aspartic acid 4-amide. Grades: Cell Culture Grade. CAS No. 70-47-3. Pack Sizes: 25g, 100g, 500g, 1Kg. Molecular Formula: C4H8N2O3, Molecular Weight: 132.12. US Biological Life Sciences. | Worldwide |
| L-Asparagine Monohydrate | L-Asparagine is used in cell culture media and is a component of MEM non-essential amino acids solution. L-Asparagine has been shown to enhance ornithine decarboxylase activity in cultured human colon adenocarcinoma Caco-2 cells and in cultured IEC-6 intestinal epithelial cells. Spore germination in Bacillus subtilis has been increased in the presence of L-asparagine. L-Asparagine, a proteinogenic amino acid, from non-animal source is used in biomanufacturing cell culture systems for the production of therapeutic recombinant proteins and monoclonal antibodies. It has also been used as a component of LHC basal media for the culture of human airway epithelial cells.The amino acid L-asparagine is a structural analog of L-aspartic acid, where the side chain of the carboxylic acid moiety is amidated to give a terminal amine group. This renders L-asparagine neutral at physiological pH. The amide group of asparagine is derived from glutamine, in the reaction of aspartate and glutamine in the presence of ATP to yield asparagine and glutamate. In vivo, asparagine is hydrolyzed to aspartate and NH4+ by asparaginase. Asparagine is also an important amino acid in glycopeptide bonds, via N-glycosyl linkages to the sugar rings. Group: Biochemicals. Alternative Names: (S)-2-Aminosuccinic acid 4-amide; (S)-(+)-2-Aminosuccinamic acid; L-Aspartic acid 4-amide; L-Asn-OH·H2O. Grades: Cell Culture Grade. CAS No. 5794-13-8. Pack Sizes: 100g, 500g, 1Kg, 2.5Kg. Molecular Formula: C4H8N2O3 H2O, Molecular Weight: 150.13. US Biological Life Sciences. | Worldwide |
| L-Aspartic Acid, non-animal | Aspartic acid (abbreviated as Asp or D; encoded by the codons [GAU and GAC]), also known as aspartate, is an α-amino acid that is used in the biosynthesis of proteins.[3] Similar to all other amino acids it contains an amino group and a carboxylic acid. Its α-amino group is in the protonated -NH+3 form under physiological conditions, while its α-carboxylic acid group is deprotonated ?COO? under physiological conditions. Aspartic acid has an acidic side chain (CH2COOH) which reacts with other amino acids, enzymes and proteins in the body. Under physiological conditions (pH 7.4) in proteins the side chain usually occurs as the negatively charged aspartate form, ?COO?. It is a non-essential amino acid in humans, meaning the body can synthesize it as needed.D-Aspartate is one of two D-amino acids commonly found in mammals. In proteins aspartate sidechains are often hydrogen bonded, often as asx turns or asx motifs, which often occur at the N-termini of alpha helices. Asp's L-isomer is one of the 22 proteinogenic amino acids, i.e., the building blocks of proteins. Asp (and glutamic acid) is classified as acidic, with a pKa of 3.9, however in a peptide this is highly dependent on the local environment (as with all amino acids), and could be as high as 14. Asp is pervasive in biosynthesis. Group: Biochemicals. Alternative Names: (S)-(+)-Aminosuccinic acid; (S)-Aminobutanedioic acid. Grades: Cell Culture Grade. CAS No. 56-84-8. Pack Sizes: 100g, 500g, 1Kg, 2.5Kg, 10Kg. Molecular Formula: C4H7NO4, Molecular Weight: 133.1. US Biological Life Sciences. | Worldwide |
| Latanoprost-d4 | Latanoprost-d4 is the labeled analogue of Latanoprost (L177280), a Prostaglandin analog, used to treat glaucoma and other degenerative diseases of the eye. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg. Molecular Formula: C26H36D4O5, Molecular Weight: 436.62. US Biological Life Sciences. | Worldwide |
| Lateropyrone (Avenacein Y, Antibiotic Y) | Lateropyrone is an unusual heterocyclic metabolite isolated from Fusarium avenaceum with antibacterial and antifungal activity. The metabolite was independently characterized as Antibiotic Y and found to be an important metabolite marker for strains of F. avenaceum. Lack of availability has hitherto restricted a more intensive investigation of this metabolite. Group: Biochemicals. Alternative Names: Avenacein Y, Antibiotic Y. Grades: Highly Purified. CAS No. 93752-78-4. Pack Sizes: 5mg. US Biological Life Sciences. | Worldwide |
| Laurocapram (N-Lauryl Caprolactam, Tranzone, Azone) | Laurocapram is used as the penetration enhancer in cosmetic preparations and personal-care products. Laurocapram is combined as an excipient not an active ingredient. Excipients are added to ensure that the shelf-life of the active ingredients can be long enough to be active until internal use. Excipients are combined also to support the active ingredients, so that the latter can be easily administered or absorbed in the body. Group: Biochemicals. Alternative Names: N-Lauryl caprolactam; Tranzone; Azone; 1-Dodecylazacycloheptan-2-one; 1-Dodecylhexahydro-2H-azepin-2-one. Grades: Highly Purified. CAS No. 59227-89-3. Pack Sizes: 25g, 100g. Molecular Formula: C18H35NO, Molecular Weight: 281.48. US Biological Life Sciences. | Worldwide |
| Lavendustin A | A potent tyrosine kinase inhibitor. Inhibition is competitive with ATP and is noncompetitive with the peptide. Group: Biochemicals. Grades: Highly Purified. CAS No. 125697-92-9. Pack Sizes: 5mg. US Biological Life Sciences. | Worldwide |
| Lavendustin B | A weak tyrosine kinase inhibitor. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 5mg. US Biological Life Sciences. | Worldwide |
| L-Azetidine-2-carboxylic Acid | A four-membered ring analog of L-Proline. A useful intermediate in the synthesis of polypeptides. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1g. US Biological Life Sciences. | Worldwide |
| L-Azetidine-2-carboxylic Acid t-Butyl Ester | A protected four-membered ring analog of L-Proline. A useful intermediate in the synthesis of polypeptides. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 5mg. US Biological Life Sciences. | Worldwide |
| L-b-Chloroalanine, Methyl Ester, Hydrochloride | L-b-Chloroalanine, Methyl Ester, Hydrochloride. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 100mg. US Biological Life Sciences. | Worldwide |
| L-b-Imidazolelactic Acid, Monohydrate (Imidazole-4-lactic Acid, (S)-2-hydroxy-3-(1(3)H-imidazol-4-yl)-propionic acid. Monohydrate. ) | An intermediate in the synthesis of imidazole alkaloids (+)-pilocarpine and (+)-isopilocarpine. Group: Biochemicals. Alternative Names: Imidazole-4-lactic Acid; (S)-2-hydroxy-3-(1(3)H-imidazol-4-yl)-propionic acid Monohydrate; (αS)-α-Hydroxy-1H-imidazole-4-propanoic Acid Monohydrate. Grades: Highly Purified. CAS No. 220919-94-8. Pack Sizes: 1g. US Biological Life Sciences. | Worldwide |
| L-Buthionine (S-Butyl-L-homocysteine) | L-Buthionine (S-Butyl-L-homocysteine). Group: Biochemicals. Alternative Names: S-Butyl-L-homocysteine. Grades: Highly Purified. Pack Sizes: 1g. US Biological Life Sciences. | Worldwide |
| L-Buthionine-[S,R]-Sulfoximine | A potent and specific inhibitor of alpha-glutamylcysteine synthetase. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1g. US Biological Life Sciences. | Worldwide |
| L-Buthionine Sulfoxide | L-Buthionine Sulfoxide. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 2.5g. US Biological Life Sciences. | Worldwide |
| L-Canavanine Sulfate | Canavanine, nitric oxide synthase inhibitor, is an analog of arginine. Both are imported into the cell via the same high-affinity permease, which is encoded by the can1 locus. High-level resistance to canavanine occurs exclusively because of mutation at this locus, but low-level resistance can arise at a number of other loci.Because canavinine is a competitive inhibitor, arginine must be excluded from media used for testing sensitivity to the drug. Canavanine resistance must also be scored under high-nitrogen conditions, such as those provided by SD or SC medium, since the CAN1 permease will then provide the only entry route to the cell for arginine and canavanine. In the presence of low-nitrogen conditions, effectively those provided by YPD medium, the general amino acid permease (GAP) system is induced and arginine and canavanine can also be taken up by this route. In addition, Can r Arg-auxotrophs are viable on YPD but are inviable on synthetic media because they are unable to take up arginine. Group: Biochemicals. Alternative Names: Canavalia ensiformis; O-Guanidino-L-homoserine; L-a-Amino-g-[guanidinooxy]-n-butyric acid. Grades: Molecular Biology Grade. CAS No. 2219-31-0. Pack Sizes: 1g. Molecular Formula: C5H12N4O3; H2SO4, Molecular Weight: 274.25. US Biological Life Sciences. | Worldwide |
| L-Citronellol (Rhodinol, (S)-3,7-Dimethyl-6-octen-1-ol) | L-Citronellol (Rhodinol, (S)-3,7-Dimethyl-6-octen-1-ol). Group: Biochemicals. Alternative Names: Rhodinol, (S)-3,7-Dimethyl-6-octen-1-ol. Grades: Highly Purified. Pack Sizes: 10g. US Biological Life Sciences. | Worldwide |
| Lck [YS505], Negative Control Peptide | Lck [YS505], Negative Control Peptide. Group: Molecular Biology. Grades: Purified. Pack Sizes: 100ug. US Biological Life Sciences. | Worldwide |
| Lck [YS505], Positive Control Peptide | Lck [YS505], Positive Control Peptide. Group: Molecular Biology. Grades: Purified. Pack Sizes: 100ug. US Biological Life Sciences. | Worldwide |
| L-(+)-Cystathionine | Intermediate in transsulfuration whereby the mammal transfers the sulfur of methionine via homocysteine to cysteine. Group: Biochemicals. Grades: Highly Purified. CAS No. 56-88-2. Pack Sizes: 25mg. US Biological Life Sciences. | Worldwide |
| L-Cysteine-glutathione Disulfide (CYSH-GSH) | L-Cysteine-glutathione Disulfide (CYSH-GSH). Group: Biochemicals. Alternative Names: CYSH-GSH. Grades: Highly Purified. Pack Sizes: 10mg. US Biological Life Sciences. | Worldwide |
| L-Cysteine Hydrochloride Anhydrous | L-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. L-Cysteine is commonly used as a precursor in the food and pharmaceutical industries. L-Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavors. Group: Biochemicals. Alternative Names: R)-2-Amino-3-mercaptopropanoic Acid Hydrochloride; (R)-Cysteine Hydrochloride; 2-Amino-3-mercaptopropionic Acid Hydrochloride; NSC 8746 Hydrochloride; Thioserine Hydrochloride; β-Mercaptoalanine Hydrochloride. Grades: Cell Culture Grade. CAS No. 52-89-1. Pack Sizes: 100g, 250g, 500g, 1Kg, 2.5Kg. Molecular Formula: C3H7NO2S HCl, Molecular Weight: 157.62. US Biological Life Sciences. | Worldwide |
| L-Cysteine (Nitroso) (BSA) | L-Cysteine (Nitroso) (BSA). Group: Biochemicals. Grades: Purified. Pack Sizes: 1mg. US Biological Life Sciences. | Worldwide |
| L-Cysteine-sulfone | L-Cysteine-sulfone. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 50mg. US Biological Life Sciences. | Worldwide |
| L-Cystine | L-Cystine. Group: Biochemicals. Grades: Cell Culture Grade. CAS No. 56-89-3. Pack Sizes: 100g, 500g, 1Kg, 2.5Kg, 10Kg. US Biological Life Sciences. | Worldwide |
| L-Cystine Dihydrochloride (non-animal) | Non-animal sourced L-cystine is used as a cell culture media component for the commercial biomanufacture of therapeutic recombinant proteins and monoclonal antibodies. Group: Biochemicals. Alternative Names: (H-Cys-OH)2.2HCl. Grades: Cell Culture Grade. CAS No. 30925-07-6. Pack Sizes: 25g, 100g, 500g, 1Kg. Molecular Formula: C6H12N2O4S2 2HCl, Molecular Weight: 313.22. US Biological Life Sciences. | Worldwide |
| L-Cystine-dimethyl Ester Dihydrochloride | L-Cystine-dimethyl Ester Dihydrochloride. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10g. US Biological Life Sciences. | Worldwide |
| L-Cystine Disodium Anhydrous (H-L-Cys-OH*NH2) | L-Cystine Disodium Anhydrous (H-L-Cys-OH*NH2). Group: Biochemicals. Alternative Names: H-L-Cys-OH*NH2; 2-amino-3-[ (2-amino-2-carboxylatoethyl) disulfanyl]propanoate Disodium. Grades: Cell Culture Grade. CAS No. 647404-23-0. Pack Sizes: 100g, 250g, 500g. Molecular Formula: C6H10N2O4S2Na2, Molecular Weight: 284.3. US Biological Life Sciences. | Worldwide |
| L-Cystine Disodium Monohydrate (non-animal) | L-Cystine Disodium Monohydrate (non-animal). Group: Biochemicals. Alternative Names: ; (2R) -2-amino-3- [ [ (2R) -2-amino-2-carboxylatoethyl] disulfanyl] propanoate. Grades: Cell Culture Grade. CAS No. 199329-53-8. Pack Sizes: 100g, 500g, 1Kg. Molecular Formula: C6H10N2O4S2 2Na H2O, Molecular Weight: 302.3. US Biological Life Sciences. | Worldwide |
| L-DOPA-2,5,6-d3 (Levodopd3, L-3-Hydroxytyrosine-d3, 3-Hydroxy-L-tyrosine-d3, (-)-3-(3,4-Dihydroxyphenyl-2,5,6-d3)-L-alanine, Bendopa-d3, Deadopa-d3, Dopaflex-d3, Dopal-d3, Dopaidan-d3, Dopalina-d3, Dopar-d3) | Natural isomer of the immediate precursor of dopamine; product of tyrsine hydroxylase. Group: Biochemicals. Alternative Names: Levodopd3; L-3-Hydroxytyrosine-d3; 3-Hydroxy-L-tyrosine-d3; (-)-3-(3,4-Dihydroxyphenyl-2,5,6-d3)-L-alanine; Bendopa-d3; Deadopa-d3; Dopaflex-d3; Dopal-d3; Dopaidan-d3; Dopalina-d3; Dopar-d3. Grades: Highly Purified. CAS No. 53587-29-4. Pack Sizes: 10mg. US Biological Life Sciences. | Worldwide |
| Lead Acetate Basic | Lead Acetate Basic can be used as a heat stabilizer for chlorine-containing polymers. It can also be used as a contrast agent for visualizing gastrointestinal tract. Group: Biochemicals. Grades: Highly Purified. CAS No. 51404-69-4. Pack Sizes: 50g, 100g. Molecular Formula: (CH?COO)?Pb; Pb(OH)?, Molecular Weight: 566.5. US Biological Life Sciences. | Worldwide |
| Lead Acetate Trihydrate, ACS | ≥99.0%. Group: Biochemicals. Grades: ACS Grade. CAS No. 6080-56-4. Pack Sizes: 500g, 1Kg. US Biological Life Sciences. | Worldwide |
| Leflunomide (5- methyl isoxazole-4- [4-trifluoro methyl carboxanilide] ) | An immunosuppressive. Group: Biochemicals. Alternative Names: 5- methyl isoxazole-4- [4-trifluoro methyl carboxanilide] . Grades: Highly Purified. Pack Sizes: 100mg. US Biological Life Sciences. | Worldwide |
| Leflunomide-d4 (5- methyl isoxazole-4- [4-trifluoro methyl carboxanilide] -d4) | An immunosuppressive. Inhibits T and B cell proliferation. Activity is attributed mainly to its metabolite, a malononitrile derivative, which is beleived to inhibit dihydroorotate dehydrogenase as well as several protein tyrosine kinases. Group: Biochemicals. Alternative Names: 5- methyl isoxazole-4- [4-trifluoro methyl carboxanilide] -d4. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences. | Worldwide |
| Lenalidomide Lactosamine Adduct | Lenalidomide Lactosamine Adduct is a derivative of Lenalidomide (L328000), an oral immunomodulatory agent for the management of myelodysplastic syndromes. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 5mg, 10mg. Molecular Formula: C25H33N3O13. US Biological Life Sciences. | Worldwide |
| (-)-Lentiginosine | A selective and powerful inhibitor of amyloglucosidases. Group: Biochemicals. Grades: Highly Purified. CAS No. 125279-72-3. Pack Sizes: 500ug, 1mg, 2mg. US Biological Life Sciences. | Worldwide |
| Leptomycin A (Antibiotic ATS 1287A, Antibiotic PD 118607, Jildamycin) | Leptomycin A, a methyl (cf. ethyl) analogue of Leptomycin B, is a minor component of the leptomycin complex produced by selected Streptomyces species. Leptomycin B is a potent inhibitor of the nuclear transport receptor CRM1. Leptomycin A is also likely to inhibit nuclear transport and may offer differences in exporter selectivity. Leptomycin A shows antimicrobial activity against Schizosaccaromyces pombe and Mucor rouxianus. Group: Biochemicals. Alternative Names: Antibiotic ATS 1287A, Antibiotic PD 118607, Jildamycin. Grades: Highly Purified. CAS No. 87081-36-5. Pack Sizes: 100ug. US Biological Life Sciences. | Worldwide |
| Leptomycin B (Elactocin, Antibiotic ATS 1287B, Antibiotic CI 940, Antibiotic CL 1957A, Antibiotic PD 114720, Mantuamycin) | Leptomycin B is the dominant and most studied member of the leptomycin class isolated from selected Streptomyces strains. Leptomycin B is a nanomolar active and specific nuclear export inhibitor. Its target is CRM1/exportin1 a protein in the nuclear export sequence (NES). Examples of proteins affected are c-Abl, cyclin B1, HIV-1 Rev, IκB, MPF, MAP/ERK, MDM2/p53, NF-κB/IκB7 and PKA. Export of many RNAs are also inhibited e.g. COX-2 and c-FOS mRNA. In addition Leptomycin B shows antifungal and antibacterial and potent antitumour activities. Group: Biochemicals. Alternative Names: Elactocin, Antibiotic ATS 1287B, Antibiotic CI 940, Antibiotic CL 1957A, Antibiotic PD 114720, Mantuamycin. Grades: Highly Purified. CAS No. 87081-35-4. Pack Sizes: 500ug. US Biological Life Sciences. | Worldwide |
| Leptomycin B, Free Acid (Elactocin, Antibiotic ATS 1287B, Antibiotic CI 940, Antibiotic CL 1957A, Antibiotic PD 114720, Mantuamycin) | Leptomycin B (LepB) is a potent, specific inhibitor of nuclear export signal (NES)-dependent protein export from the nucleus. Group: Biochemicals. Grades: Highly Purified. CAS No. 87081-35-4. Pack Sizes: 100ug. US Biological Life Sciences. | Worldwide |
| Letrozole-d4 | A deuterated version of Letrozole, a nonsteroidal aromatase inhibitor structurally related to Fadrozole.The current lot is 84% d4, 16% d3, no detectable d2, d1 or d0. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences. | Worldwide |
| Leucovorin Calcium Salt Pentahydrate (N-[4-[[ (2-Amino-5-formyl-1, 4, 5, 6, 7, 8-hexahydro-4-oxo-6-pteridinyl) methyl]amino]benzoyl]-L-glutamic Acid Calcium Salt, Calcium Levofolinate, Levoleucovorin Calcium, Folinic Acid Calcium Salt) | An intermediate product of the metabolism of Folic Acid; the active form into which that acid is converted in the body, ascorbic acid being a necessary factor in the conversion process. Group: Biochemicals. Alternative Names: N-[4-[[ (2-Amino-5-formyl-1, 4, 5, 6, 7, 8-hexahydro-4-oxo-6-pteridinyl) methyl]amino]benzoyl]-L-glutamic Acid Calcium Salt Pentahydrate; Calcium Folinate; Folaren; Foliben; Folidan; Folinic Acid Calcium Salt Pentahydrate; Lederfolat; Lederfolin. Grades: Highly Purified. CAS No. 6035-45-6. Pack Sizes: 100mg, 500mg, 1g. Molecular Formula: C20H31CaN7O12, Molecular Weight: 601.58. US Biological Life Sciences. | Worldwide |
| Levetiracetam-d3 | Labeled Levetiracetam, which is used as an anticonvulsant. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences. | Worldwide |
| Levetiracetam (UCB-L059, SIB-S1, Keppra) | Used as an anticonvulsant. Group: Biochemicals. Alternative Names: UCB-L059; SIB-S1; Keppra; (αS)-α-Ethyl-2-oxo-1-pyrrolidineacetamide; 2(S)-(2-Oxopyrrolidin-1-yl)butyramide; (-)-Levetiracetam; Levesam 500; (S)-Levetiracetam. Grades: Highly Purified. CAS No. 102767-28-2. Pack Sizes: 100mg, 250mg, 500mg. Molecular Formula: C?H??N?O?, Molecular Weight: 170.21. US Biological Life Sciences. | Worldwide |
| (-)-Levobunolol, Hydrochloride ((-)-5-[3,(t-Butylamino)-2-hydroxy-propoxy]-3,4-dihydro-1(2H)-naphthalenone, Hydrochloride) | A non-selective ß-adrenoceptor antagonist. Group: Biochemicals. Alternative Names: (-)-5-[3,(t-Butylamino)-2-hydroxy-propoxy]-3,4-dihydro-1(2H)-naphthalenone, Hydrochloride. Grades: Highly Purified. Pack Sizes: 250mg. US Biological Life Sciences. | Worldwide |
| Levofloxacin Hemihydrate ((-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid, Hemihydrate) | Levofloxacin is a synthetic chemotherapeutic antibiotic of the fluoroquinolone drug class[1][2] and is used to treat severe or life-threatening bacterial infections or bacterial infections that have failed to respond to other antibiotic classes.[3][4] It is sold under various brand names, such as Levaquin and Tavanic, the most common. In form of ophthalmic solutions it is known as Oftaquix, Quixin and Iquix. Group: Biochemicals. Alternative Names: (-)-(S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid, Hemihydrate. Grades: Highly Purified. CAS No. 138199-71-0. Pack Sizes: 100mg. US Biological Life Sciences. | Worldwide |
| Levulinic-d5 Acid | Levulinic-d5 Acid is labelled Levulinic Acid (L379500) which is derived from the degredation of cellulose and is a potential precursor to biofuels. Levulinic acid. It is also a photosensitizer for photodynamic therapy. Group: Biochemicals. Grades: Highly Purified. CAS No. 1206185-52-5. Pack Sizes: 2.5mg, 25mg. Molecular Formula: C5H3D5O3. US Biological Life Sciences. | Worldwide |
| L-Felinine | An amino acid found in the urine of species of the Felidae family, is beleived to either posses pheromone activity or give rise to compounds with such activity. Group: Biochemicals. Alternative Names: L-2-Amino-7-hydroxy-5,5-dimethyl-4-thiaheptanoic Acid; S-(3-Hydroxy-1,1-dimethylpropyl)-L-cysteine. Grades: Highly Purified. CAS No. 471-09-0. Pack Sizes: 5mg, 10mg, 25mg. Molecular Formula: C8H17NO3S, Molecular Weight: 207.29. US Biological Life Sciences. | Worldwide |
| L-Gluconic Acid N-Succinimide | L-Gluconic Acid N-Succinimide is an analogue of D-Gluconic Acid N-Succinimide (G417430), an intermediate in the synthesis of a phenylboronica acid polymer as a self-regulating insulin delivery system. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 50mg, 500mg. Molecular Formula: C10H15NO9, Molecular Weight: 293.23. US Biological Life Sciences. | Worldwide |
| L-Glutamic Acid (non-animal) | Synonyms. Group: Biochemicals. Alternative Names: (2S)-2-Aminopentanedioic Acid; (S)-(+)-Glutamic Acid; (S)-2-Amino-1,5-pentanedioic Acid; (S)-2-Aminopentanedioic Acid; 1-Aminopropane-1,3-dicarboxylic Acid; Glusate; Glutacid; Glutamicol; Glutamidex; Glutaminol; Glutaton; L-(+)-Glutamic Acid; L-α-Aminoglutaric Acid; α-Glutamic Acid. Grades: Cell Culture Grade. CAS No. 56-86-0. Pack Sizes: 25g, 100g, 500g, 1Kg, 2.5Kg. Molecular Formula: C5H9NO4, Molecular Weight: 147.13. US Biological Life Sciences. | Worldwide |
| L-Glutamic Acid, Sodium Salt, Monohydrate (H-Glu-OH Na) | L-Glutamic Acid, Sodium Salt (sodium glutamate) is the sodium salt of glutamic acid. It is used in the food industry most usually as a flavor with an umami taste. Group: Biochemicals. Alternative Names: L-Glutamic Acid Monosodium Salt Monohydrate; L-Glutamic Acid Monosodium Salt, Monohydrate; MSG Monohydrate; Monosodium L-Glutamate Monohydrate; Monosodium Glutamate Monohydrate; Sodium Glutamate Monohydrate; H-Glu-OH Na Monohydrate. Grades: Highly Purified. CAS No. 6106-4-3. Pack Sizes: 500g, 1Kg, 2.5Kg. Molecular Formula: C5H8NNaO4 H2O, Molecular Weight: 187.13. US Biological Life Sciences. | Worldwide |
| L-Glutamine (L-Gln-OH) | L-Glutamine is an essential amino acid that is a crucial component of culture media that serves as a major energy source for cells in culture. L-Glutamine is very stable as a dry powder and as a frozen solution. In liquid media or stock solutions, however, L-glutamine degrades relatively rapidly. Optimal cell performance usually requires supplementation of the media with L-glutamine prior to use. Group: Biochemicals. Alternative Names: (S)-2,5-Diamino-5-oxopentanoic Acid; 2-Aminoglutaramic Acid; Acustasin; Aesgen 14; Cebrogen; Glumin; L-2-Aminoglutaramidic Acid; L-Glutamic Acid γ-Αmide; Levoglutamide; NSC 27421; Saforis; Stimulina; γ-Glutamine; L-Gln-OH. Grades: Cell Culture Grade. CAS No. 56-85-9. Pack Sizes: 10g, 100g, 500g, 1Kg, 2.5Kg, 5Kg. Molecular Formula: C5H10N2O3, Molecular Weight: 146.15. US Biological Life Sciences. | Worldwide |
| L-Histidine Hydrochloride Hydrate (L-His-OH.HCl) | L-Histidine Hydrochloride Hydrate (L-His-OH.HCl). Group: Biochemicals. Alternative Names: (S)-2-amino-3-(1H-iMidazol-4-yl)propanoic acid HCl; L-Histidine monohydrocholoride; L-His-OH.HCl; L-histidine chloride. Grades: Cell Culture Grade. CAS No. 5394-29-2. Pack Sizes: 25g, 100g, 250g, 1Kg, 5Kg. Molecular Formula: C6H9N3O2 HCl H2O, Molecular Weight: 209.6. US Biological Life Sciences. | Worldwide |
| L-Histidine (L-His-OH) | L-Histidine is an essential amino acid for human development which the body cannot produce on its own. L-Histidine is one of the 22 proteinogenic amino acids. L-Histidine precursor to histamine and a component of carnosine. Group: Biochemicals. Alternative Names: L-His-OH; (2S)-2-Amino-3-(1H-imidazol-4-yl)propanoic Acid; (S)-Histidine; L-(-)-Histidine; (S) -4- (2-Amino-2-carboxyethyl) imidazole; (S)-α-Amino-1H-imidazole-4-propanoic Acid; 1448: PN: EP2071334 SEQID: 1532 claimed protein; NSC 137773; 1448: PN: WO2009077864 SEQID: (S)-1H-Imidazole-4-alanine; PN: WO2009046220 SEQID: 343 claimed sequence; Glyoxaline-5-alanine; Histidine;3-(1H-Imidazol-4-yl)-L-alanine. Grades: Cell Culture Grade. CAS No. 71-00-1. Pack Sizes: 50g, 100g, 250g, 500g, 1Kg. Molecular Formula: C6H9N3O2, Molecular Weight: 155.16. US Biological Life Sciences. | Worldwide |
| L-Homoarginine, Hydrochloride (2-Amino-6-guanidino-hexanoic Acid, HCl) | An inhibitor of alkaline phosphatase isoenzymes. Group: Biochemicals. Alternative Names: 2-Amino-6-guanidino-hexanoic Acid, HCl. Grades: Highly Purified. CAS No. 1483-01-8. Pack Sizes: 2g. US Biological Life Sciences. | Worldwide |
| L-Homocystine, 99% | Solubility (10mg/ml, 2N NH4): Group: Biochemicals. Alternative Names: H-Homocystine-(OH)2; L-4-4-Dithiobis(2-aminobutanoic acid). Grades: Highly Purified. CAS No. 626-72-2. Pack Sizes: 1g. US Biological Life Sciences. | Worldwide |
| L-Homoserine, 98+% | Identification: Meets specifications. Group: Biochemicals. Alternative Names: (S)-2-Amino-4-hydroxybutyric acid. Grades: Highly Purified. CAS No. 672-15-1. Pack Sizes: 5g. US Biological Life Sciences. | Worldwide |
| L-Homoserine Lactone, Hydrochloride | Melting Point: 218-220°C. Group: Biochemicals. Grades: Highly Purified. CAS No. 2185-3-7. Pack Sizes: 1g. US Biological Life Sciences. | Worldwide |
| Lidocaine-d10 Hydrochloride (2- (Diethyl-d10-amino) -N- (2, 6-dimethylphenyl) acetamide Hydrochloride, Basicaina-d10, Batixim-d10, Dynexan-d10, Heweneural-d10, Licain-d10) | Anesthetic (local); antiarrhythmic (class IB). Group: Biochemicals. Alternative Names: 2- (Diethyl-d10-amino) -N- (2, 6-dimethylphenyl) acetamide Hydrochloride; Basicaina-d10; Batixim-d10; Dynexan-d10; Heweneural-d10; Licain-d10. Grades: Highly Purified. Pack Sizes: 5mg. US Biological Life Sciences. | Worldwide |
| Lincomycin Hydrochloride | Lincomycin is a lincosamide antibiotic that comes from the actinomyces Streptomyces lincolnensis. It has been structurally modified by thionyl chloride to its more commonly known 7-chloro-7-deoxy derivative, clindamycin. It is available under the brand name of Lincobect and Lincocin in Pakistan. Group: Biochemicals. Alternative Names: (2S-trans)-Methyl 6, 8-dideoxy-6-[[ (1-methyl-4-propyl-2-pyrrolidinyl) carbonyl]amino]-1-thio-D-threo-a-D-galacto-octopyranoside. Grades: Highly Purified. Pack Sizes: 1g. US Biological Life Sciences. | Worldwide |
| Linoleic Acid | Linoleic Acid is anti-inflammatory, acne reductive, and moisture retentive when applied topically on the skin. It is popular in the beauty products industry because of its beneficial properties on the skin. Group: Biochemicals. Alternative Names: (9Z,12Z)-9,12-Octadecadienoic Acid ;(Z,Z)-;9,12-Octadecadienoic Acid; (9Z,12Z)-9,12-Octadecadienoic Acid; (Z,Z)-9,12-Octadecadienoic Acid; (Z,Z)-9,12-Octadecadienoic Acid; 9-cis,12-cis-Linoleic Acid; 9Z,12Z-Linoleic Acid; 9Z,12Z-Octadecadienoic Acid; C18:2; Extra Linoleic 90; Linolic Acid; Polylin 515; Ronacare ASC 3; Unifac 6550; all-cis-9,12-Octadecadienoic Acid; cis,cis-Linoleic Acid; cis-9,cis-12-Octadecadienoic Acid; cis-Δ9,12-Octadecadienoic Acid; α-Linoleic Acid. Grades: Highly Purified. CAS No. 60-33-3. Pack Sizes: 50mg, 100 mg. Molecular Formula: C18H32O2. US Biological Life Sciences. | Worldwide |
| Linoleic Acid, Sodium Salt | Linoleic Acid, Sodium Salt. Group: Biochemicals. Alternative Names: Sodium Linoleate; Telfairic Acid; 9Z,12Z-octadecadienoic acid, monosodium salt. Grades: Highly Purified. CAS No. 822-17-3. Pack Sizes: 1g, 5g, 25g. Molecular Formula: C18H31O2Na, Molecular Weight: 302.4. US Biological Life Sciences. | Worldwide |
| Lipoic Acid (Thioctic Acid, Alpha Lipoic Acid) | Coenzyme in the oxidative decarboxylation reactions of glucose metabolism and the citric acid cycle. Although it is an essential growth factor for various micro-organisms. a-Lipoic acid, is a naturally occuring coenzyme containing a disulfide that has been used to treat polyneuropathies and hepatic disorders. a-Lipoic acid is a potent inhibitor of NFKB activation and HIV-1 tat driven gene expression. Group: Biochemicals. Alternative Names: (+/-)-1,2-Dithiolane-3-pentanoic Acid; (+/-)-1,2-Dithiolane-3-valeric Acid; (+/-)-Thioctic Acid; (RS)-α-Lipoic Acid; DL-Thioctic Acid; Liposan; Lipothion; NSC 628502; NSC 90788; Protogen A; Thioctsan; Tioctacid. Grades: Cell Culture Grade. CAS No. 1077-28-7. Pack Sizes: 10g, 25g, 100g, 500g. Molecular Formula: C8H14O2S2, Molecular Weight: 206.3. US Biological Life Sciences. | Worldwide |
| Liranafate ((6-Methoxy-2-pyridinyl)-methylcarbamothioic Acid O-(5,6,7,8-Tetrahydro-2-naphthalenyl) Ester, Piritetrate, M-732, Zefnart ) | A squalene epoxidase inhibitor. Used as an antifungal. Group: Biochemicals. Alternative Names: (6-Methoxy-2-pyridinyl)-methylcarbamothioic Acid O-(5,6,7,8-Tetrahydro-2-naphthalenyl) Ester, Piritetrate, M-732, Zefnart. Grades: Highly Purified. Pack Sizes: 10mg. US Biological Life Sciences. | Worldwide |
| Lisinopril-d5 ((S)-1-[N2-(1-Carboxy-3-phenylpropyl)-L-lysyl]L-proline-d5) | Labeled Lisinopril, an orally active angiotensin-converting enzyme (ACE) inhibitor. Group: Biochemicals. Alternative Names: (S)-1-[N2-(1-Carboxy-3-phenylpropyl)-L-lysyl]L-proline-d5. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences. | Worldwide |
| Lisinopril ((S)-1-[N2-(1-Carboxy-3-phenylpropyl)-L-lysyl]L-proline, Dihydrate, MK-521, Acerbon, Alapril, Carace, Coric, Novatec, Prinil, Prinivil, Tensopril, Vivatec, Zestril) | An orally active angiotensin-converting enzyme (ACE) inhibitor. Group: Biochemicals. Alternative Names: (S)-1-[N2-(1-Carboxy-3-phenylpropyl)-L-lysyl]L-proline, Dihydrate, MK-521, Acerbon, Alapril, Carace, Coric, Novatec, Prinil, Prinivil, Tensopril, Vivatec, Zestril. Grades: Highly Purified. Pack Sizes: 100mg. US Biological Life Sciences. | Worldwide |
| Lisofylline (1-(5-Hydroxyhexyl)-3,7-dimethylxanthine) | A potent inhibitor of phosphatidic acid generation (IC50=0.6uM). Protects mice from endotoxic shock and attenuates sepsis-induced acute lung injury in pig. Group: Biochemicals. Alternative Names: 1-(5-Hydroxyhexyl)-3,7-dimethylxanthine. Grades: Highly Purified. Pack Sizes: 25mg. US Biological Life Sciences. | Worldwide |
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