BOC Sciences provides a wide range of research chemicals and biochemicals including inhibitors, building blocks, GMP Products, impurities and metabolites, APIs for Veterinary, Natural Compounds, ADCs, Stem Cell Molecule and chiral compounds.
×
Product
Description
Suppliers Website
LEP (116-130) (mouse) TFA
LEP (116-130) (mouse) TFA is a synthetic leptin peptide fragment. Synonyms: Leptin Fragment 116-130 Amide mouse TFA; LEP(116-130) (mouse) TFA; H-Ser-Cys-Ser-Leu-Pro-Gln-Thr-Ser-Gly-Leu-Gln-Lys-Pro-Glu-Ser-NH2.TFA; L-seryl-L-cysteinyl-L-seryl-L-leucyl-L-prolyl-L-glutaminyl-L-threonyl-L-seryl-glycyl-L-leucyl-L-glutaminyl-L-lysyl-L-prolyl-L-alpha-glutamyl-L-serinamide trifluoroacetic acid; L-Serinamide, L-seryl-L-cysteinyl-L-seryl-L-leucyl-L-prolyl-L-glutaminyl-L-threonyl-L-serylglycyl-L-leucyl-L-glutaminyl-L-lysyl-L-prolyl-L-α-glutamyl-, 2,2,2-trifluoroacetate (1:1). Grade: ≥95%. CAS No. 2828433-16-3. Molecular formula: C66H110F3N19O26S. Mole weight: 1674.77.
Leptin (116-130) (human)
Leptin (116-130) (human) is a fragment of human leptin, which is an adipose tissue-derived protein encoded by an obesity gene and is involved in controlling food intake, energy expenditure and reproduction, as well as playing a role in immune regulation, inflammation, and hematopoiesis. Synonyms: Obese Gene Peptide (116-130) (human); L-Serine, L-seryl-L-cysteinyl-L-histidyl-L-leucyl-L-prolyl-L-tryptophyl-L-alanyl-L-serylglycyl-L-leucyl-L-α-glutamyl-L-threonyl-L-leucyl-L-α-aspartyl-; H-Ser-Cys-His-Leu-Pro-Trp-Ala-Ser-Gly-Leu-Glu-Thr-Leu-Asp-Ser-OH; L-seryl-L-cysteinyl-L-histidyl-L-leucyl-L-prolyl-L-tryptophyl-L-alanyl-L-seryl-glycyl-L-leucyl-L-alpha-glutamyl-L-threonyl-L-leucyl-L-alpha-aspartyl-L-serine. Grade: ≥95%. CAS No. 2243207-12-5. Molecular formula: C70H106N18O24S. Mole weight: 1615.76.
Leptoglycin
Leptoglycin is an antibacterial peptide isolated from Leptodactylus pentadactylus. Leptoglycin was able to inhibit the growth of Gram-negative bacteria Pseudomonas aeruginosa, Escherichia coli and Citrobacter freundii with minimal inhibitory concentrations (MICs) of 8 microM, 50 microM, and 75 microM respectively, but it did not show antimicrobial activity against Gram-positive bacteria (Staphylococcus aureus, Micrococcus luteus and Enterococcus faecalis), yeasts (Candida albicans and Candida tropicalis) and dermatophytes fungi (Microsporum canis and Trichophyton rubrum). Synonyms: Gly-Leu-Leu-Gly-Gly-Leu-Leu-Gly-Pro-Leu-Leu-Gly-Gly-Gly-Gly-Gly-Gly-Gly-Gly-Gly-Leu-Leu.
This dipeptide inhibits ubiquitin-mediated protein degradation. Synonyms: L-Leucyl-L-alanine. Grade: ≥ 97% (HPLC). CAS No. 7298-84-2. Molecular formula: C9H18N2O3. Mole weight: 202.25.
Leu-AMC HCl
L-Leucine 7-Amido-4-methylcoumarin Hydrochloride is a fluorogenic substrate for LAP3 (leucine aminopeptidase). Upon enzyme activity, a bright blue fluorescent dye, 7-amino-4-methylcoumarin, is released. Synonyms: L-Leucine-AMC.HCl. Grade: ≥ 99% (HPLC). CAS No. 62480-44-8. Molecular formula: C16H21ClN2O3. Mole weight: 324.80.
Leu-Asp-AMC
Leu-Asp-AMC is a peptide substrate for Porphyromonas Gingivalis Dipeptidyl-Peptidase 11. Synonyms: Leu-Asp-MCA; L-Leucyl-L-aspartic acid α-(4-methylcoumaryl-7-amide). CAS No. 929621-97-6. Molecular formula: C20H25N3O6. Mole weight: 403.43.
Leucokinin VIII is a diuretic octopeptide isolated from cockroach head extract. Synonyms: Leucokinin 8; H-Gly-Ala-Ser-Phe-Tyr-Ser-Trp-Gly-NH2; glycyl-L-alanyl-L-seryl-L-phenylalanyl-L-tyrosyl-L-seryl-L-tryptophyl-glycinamide; (S)-N-((5S,8S,11S,14S)-5-((1H-indol-3-yl)methyl)-1-amino-11-(4-hydroxybenzyl)-8-(hydroxymethyl)-1,4,7,10,13-pentaoxo-15-phenyl-3,6,9,12-tetraazapentadecan-14-yl)-2-((S)-2-(2-aminoacetamido)propanamido)-3-hydroxypropanamide. Grade: ≥95%. CAS No. 2703746-05-6. Molecular formula: C42H52N10O11. Mole weight: 872.92.
Leucokinin VIII acetate
Leucokinin VIII acetate is a diuretic octapeptide isolated from cockroach head extract. Synonyms: Leucokinin 8; H-Gly-Ala-Ser-Phe-Tyr-Ser-Trp-Gly-NH2.CH3CO2H; glycyl-L-alanyl-L-seryl-L-phenylalanyl-L-tyrosyl-L-seryl-L-tryptophyl-glycinamide acetic acid. Grade: ≥95%. CAS No. 2703746-06-7. Molecular formula: C44H56N10O13. Mole weight: 932.99.
Leucyl-serine
Leucyl-serine is a dipeptide composed of leucine and serine. It is an incomplete breakdown product of protein digestion or protein catabolism. Synonyms: L-leucyl-L-serine; H-LS-OH; Leu-Ser; N-Leucylserine; L-Leu-L-Ser; Leu-Ser-OH; N-L-leucyl-L-serine; L-Serine, L-leucyl-. Grade: ≥95% by HPLC. CAS No. 6209-12-7. Molecular formula: C9H18N2O4. Mole weight: 218.25.
Leu-D-Leu
Leu-D-Leu is a specific substrate for D-peptidase S, an intracellular carboxypeptidase-like enzyme that preferentially hydrolyzes dipeptides containing hydrophobic D-amino acids. Synonyms: l-Leucyl-d-leucine; D-Leucine, L-leucyl-; N-L-Leucyl-D-leucine; (R)-2-((S)-2-amino-4-methylpentanamido)-4-methylpentanoic acid. CAS No. 17665-02-0. Molecular formula: C12H24N2O3. Mole weight: 244.33.
Leu-Gly-Gly-Gly is a tetrapeptide consisting of L-leucine and three glycine residues. L-leucine is a branched-chain amino acid critical for protein synthesis, muscle repair, and energy production. Glycine plays a role in various physiological processes, including neurotransmission and collagen synthesis. This peptide may support muscle recovery and overall metabolic functions, with L-leucine driving protein synthesis and glycine contributing to structural and functional roles in the body. Synonyms: LGGG; Leucyl-glycyl-glycyl-glycine; L-Leucylglycylglycylglycine; H-Leu-Gly-Gly-Gly-OH; L-leucyl-glycyl-glycyl-glycine; H-LGGG-OH; Glycine, N-(N-(N-L-leucylglycyl)glycyl)-; N-(N-(N-L-Leucylglycyl)glycyl)-glycine. Grade: ≥90%. CAS No. 14857-78-4. Molecular formula: C12H22N4O5. Mole weight: 302.33.
This dipeptide inhibits the ubiquitin-mediated proteolysis. Synonyms: Leu Gly OH; L-Leucyl-glycine; (S)-2-(2-Amino-4-methylpentanamido)acetic acid. Grade: ≥ 99% (HPLC). CAS No. 686-50-0. Molecular formula: C8H16N2O3. Mole weight: 188.22.
Leu-Gly-Tyr
Leu-Gly-Tyr is a tripeptide composed of L-leucine, L-glycine, and L-tyrosine. L-leucine is a branched-chain amino acid essential for protein synthesis and muscle repair, L-glycine is a small amino acid involved in protein structure and neurotransmission, and L-tyrosine is an aromatic amino acid important for synthesizing neurotransmitters like dopamine and norepinephrine. This tripeptide may be studied for its impact on peptide stability, structure-function relationships in proteins, and potential roles in neurotransmitter-related pathways. It could also be relevant in research focused on amino acid interactions and therapeutic peptide development. Synonyms: LGY; L-Leucylglycyl-L-tyrosine; L-Tyrosine, N-(N-L-leucylglycyl)-; Tyrosine, N-(N-L-leucylglycyl)-; H-Leu-Gly-Tyr-OH; H-LGY-OH; L-Leucyl-glycyl-L-tyrosine; Leucyl-glycyl-tyrosine. Grade: ≥90%. CAS No. 93993-14-7. Molecular formula: C17H25N3O5. Mole weight: 351.40.
Leukocyte Proteinase-3 (169-177)
Leukocyte Proteinase-3 (169-177) is amino acids 169 to 177 fragment of Leukocyte Proteinase-3. Proteinase-3 is a serine protease enzyme expressed mainly in neutrophil granulocytes. In human neutrophils, proteinase 3 contributes to the proteolytic generation of antimicrobial peptides.
Leu-Nle-NH2 HCl is an analog of Leupeptin. Synonyms: L-leucyl-L-norleucinamide hydrochloride. Grade: ≥ 95%. CAS No. 68759-98-8. Molecular formula: C12H25N3O2·HCl. Mole weight: 279.81.
Leu-Pro-Ala-NH2
Leu-Pro-Ala-NH2 is a simple tripeptide with a free amine group at the C-terminus. It consists of leucine (Leu), proline (Pro), and alanine (Ala) residues. The -NH2 at the C-terminus indicates that the peptide has a free amine group, which can be utilized for further reactions or modifications. This peptide sequence is used to study the effects of leucine, proline, and alanine in peptide structures and interactions, with potential applications in understanding peptide conformations or biological activities. Synonyms: LPA; H-Leu-Pro-Ala-NH2; (S)-1-(L-Leucyl)-N-((S)-1-amino-1-oxopropan-2-yl)pyrrolidine-2-carboxamide. Grade: ≥95%. Molecular formula: C14H26N4O3. Mole weight: 298.39.
Leu-Val-OH. Synonyms: L-Leucyl-L-valine; Leu Val OH. Grade: ≥ 99% (HPLC). CAS No. 13588-95-9. Molecular formula: C11H22N2O3. Mole weight: 230.31.
Levothyroxine sodium hydrate
3,3',5,5'-Tetraiodo-L-thyronine sodium saltm is the sodium salt of levothyroxine, a synthetic levoisomer of thyroxine (T4) that is similar to the endogenous hormone produced by the thyroid gland. In peripheral tissues, levothyroxine is deiodinated by 5'-deiodinase to form triiodothyronine (T3). T3 enters the cell and binds to nuclear thyroid hormone receptors, the activated hormone-receptor complex in turn triggers gene expression and produces proteins required in the regulation of cellular respiration, thermogenesis, cellular growth and differentiation, and the metabolism of proteins, carbohydrates and lipids. T3 also exhibits cardiostimulatory effects. Synonyms: Levothyroxine sodium monohydrate; L-Thyroxine sodium hydrate. Grade: ≥ 98% (HPLC). CAS No. 25416-65-3. Molecular formula: C15H10I4NNaO4.xH2O. Mole weight: 798.85 (anhydrous basis).
Lf-CATH1
Lf-CATH1 is an antibacterial peptide isolated from Limnonectes fragilis. It has activity against gram-positive bacteria, gram-negative bacteria and fungi. Synonyms: Pro-Pro-Cys-Arg-Gly-Ile-Phe-Cys-Arg-Arg-Val-Gly-Ser-Ser-Ser-Ala-Ile-Ala-Arg-Pro-Gly-Lys-Thr-Leu-Ser-Thr-Phe-Ile-Thr-Val. Grade: 96.0%.
Lf-CATH2
Lf-CATH2 is an antibacterial peptide isolated from Limnonectes fragilis. It has activity against gram-positive bacteria, gram-negative bacteria and fungi. Synonyms: Gly-Lys-Cys-Asn-Val-Leu-Cys-Gln-Leu-Lys-Gln-Lys-Leu-Arg-Ser-Ile-Gly-Ser-Gly-Ser-His-Ile-Gly-Ser-Val-Val-Leu-Pro-Arg-Gly. Grade: 96.0%.
L-Glufosinate is a glutamine synthetase inhibitor and is used as a herbicide (usually as the corresponding ammonium or sodium salt, known as glufosinate-P-ammonium and glufosinate-P-sodium, respectively) to control annual weeds and grasses. Uses: L-glufosinate is a compound that has shown promise in the field of drug discovery. with its unique properties and mechanisms of action, it has the potential to be utilized in the development of new pharmaceuticals for various medical conditions. phosphinothricin, another name for l-glufosinate, is a derivative of amino acids that functions as a strong herbicide by preventing plants from producing. Synonyms: Butanoic acid, 2-amino-4-(hydroxymethylphosphinyl)-, (2S)-; Glufosinate-P; (S)-Phosphinothricin; L-Phosphinothricin; (S)-Glufosinate; (+)-glufosinate; L-homoalanin-4-yl(methyl)phosphinic acid; 4-[hydroxy(methyl)phosphinoyl]-L-homoalanine; L-2-Amino-4-(hydroxymethylphosphinyl)butanoate-; (S)-2-Amino-4-(hydroxymethylphosphinyl)butyric acid. Grade: ≥95%. CAS No. 35597-44-5. Molecular formula: C5H12NO4P. Mole weight: 181.13.
L-Glutamic acid
L-glutamic acid is a non-essential amino acid that acts as an excitatory neurotransmitter in the CNS. Synonyms: Glutamic acid, L-; (+)-L-Glutamic acid; (2S)-2-Azaniumyl-5-hydroxy-5-oxopentanoate; (S)-(+)-Glutamic acid; (S)-2-Amino-1,5-pentanedioic acid; (S)-2-Aminopentanedioic acid; (S)-Glutamic acid; 2-Aminoglutaric acid; L-(+)-Glutamic acid; L-Glutaminic acid; L-α-Aminoglutaric acid; Aciglut; E 620; Glusate; Glutacid; Glutamic acid; Glutamicol; Glutamidex; Glutaminic acid; Glutaminol; Glutaton; l-Glutaminic acid; NSC 143503; Pentanedioic acid, 2-amino-, (S)-; Sortem; α-Aminoglutaric acid; α-Glutamic acid. Grade: >98%. CAS No. 56-86-0. Molecular formula: C5H9NO4. Mole weight: 147.13.
2-Chlorotrityl-Chloride-Resin is less acid-labile than Trityl Resin, and is widely used for solid phase immobilization. It has been used with the Fmoc/tBu methodology in the microwave-assisted solid phase peptide synthesis. Synonyms: H-Glu{Trt(2-Cl)-Resin}-OAl; H-Glu(Barlos-Resin)-OAl.
L-Glutamic Acid 1-(1,1-Dimethylethyl) 5-(Phenylmethyl) ester hydrochloride, is a versatile building block in the peptide chemistry. It can be used in the synthesis of series of dynamic peptides. Synonyms: L-Glu(OBzl)-OtBu HCl; (S)-5-benzyl 1-tert-butyl 2-amino-pentanedioate hydrochloride; L-Glutamic Acid 1-(1,1-Dimethylethyl) 5-(Phenylmethyl) Ester Hydrochloride; 5-benzyl 1-tert-butyl l-glutamate hydrochloride; H-Glu(OBzl)-OtBu HCl. Grade: ≥ 99% (HPLC). CAS No. 105590-97-4. Molecular formula: C16H23NO4·HCl. Mole weight: 329.82.
L-Glutamic acid 5-methyl ester is a protected form of L-Glutamic acid. L-Glutamic acid is a non-essential amino acid that is important to the mammalian central nervous system. L-Glutamic acid is also a neurotransmitter for cone photoreceptors in the human brain and is used as a treatment for patients who have liver disease accompanied by encephalopathy (a condition termed 'hepatic coma'). Synonyms: L-Glu(OMe)-OH; L-Glutamic acid 5-methyl ester; Mono-methyl-L-glutamate; 5-METHYL L-GLUTAMATE; (S)-2-Amino-5-methoxy-5-oxopentanoic acid; 5-Methoxy-5-oxy-L-norvaline; H-Glu(OMe)-OH. Grade: ≥ 98.5% (HPLC). CAS No. 1499-55-4. Molecular formula: C6H11NO4. Mole weight: 161.16.
L-Glutamic Acid 5-tert-butyl 1-methyl ester hydrochloride, is a versatile building block in the peptide chemistry. It can be utilized in the synthesis of series of dynamic peptides used as biomimetic carbohydrate receptors. Synonyms: L-Glu(OtBu)-OMe HCl; L-Glutamic acid 5-tert-butyl 1-methyl ester hydrochloride; 5-O-tert-butyl 1-O-methyl(2S)-2-aminopentanedioate hydrochloride. Grade: ≥ 98% (HPLC). CAS No. 6234-1-1. Molecular formula: C10H19NO4·HCl. Mole weight: 253.80.
L-Glutamic acid γ-tert-butyl ester
L-Glutamic acid 5-tert-butyl ester is a protected form of L-Glutamic acid. L-Glutamic acid is a non-essential amino acid that is important to the mammalian central nervous system. L-Glutamic acid is also a neurotransmitter for cone photoreceptors in the human brain and is used as a treatment for patients who have liver disease accompanied by encephalopathy (a condition termed 'hepatic coma'). Synonyms: L-Glu(OtBu)-OH; L-Glutamic acid 5-tert-butyl ester; (2S)-2-amino-5-[(2-methylpropan-2-yl)oxy]-5-oxopentanoic acid; L-Glutamic acid 5-tert-butyl ester; H-Glu(OtBu)-OH Hydrate; 5-tert-Butyl L-Glutamate Hydrate; 5-tert-Butyl L-Glutamate. Grade: ≥ 99% (HPLC). CAS No. 2419-56-9. Molecular formula: C9H17NO4. Mole weight: 203.20.