A directory of where to buy chemicals in the USA, including: distributors, industrial manufacturers, bulk supplies and wholesalers of raw ingredients & finished goods.
S-tert-Butylthio-L-cysteine 99+% (TLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 1g, 5g, 25g. US Biological Life Sciences.
Worldwide
steryl-β-glucosidase
Acts on glucosides of cholesterol and sitosterol, but not on some related sterols such as coprostanol. Group: Enzymes. Enzyme Commission Number: EC 3.2.1.104. CAS No. 69494-88-8. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-3787; steryl-β-glucosidase; EC 3.2.1.104; 69494-88-8. Cat No: EXWM-3787.
steryl-sulfatase
Also acts on some related steryl sulfates. Group: Enzymes. Synonyms: arylsulfatase; steroid sulfatase; sterol sulfatase; dehydroepiandrosterone sulfate sulfatase; arylsulfatase C; steroid 3-sulfatase; steroid sulfate sulfohydrolase; dehydroepiandrosterone sulfatase; pregnenolone sulfatase; phenolic steroid sulfatase; 3-β-hydroxysteroid sulfate sulfatase. Enzyme Commission Number: EC 3.1.6.2. CAS No. 9025-62-1. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-3753; steryl-sulfatase; EC 3.1.6.2; 9025-62-1; arylsulfatase; steroid sulfatase; sterol sulfatase; dehydroepiandrosterone sulfate sulfatase; arylsulfatase C; steroid 3-sulfatase; steroid sulfate sulfohydrolase; dehydroepiandrosterone sulfatase; pregnenolone sulfatase; phenolic steroid sulfatase; 3-β-hydroxysteroid sulfate sulfatase. Cat No: EXWM-3753.
S-(-)-Tetrahydrofurancarboxylic acid
Tetrahydrofurancarboxylic acid. CAS No. 87392-07-2. Categories: (s)-tetrahydrofuran-2-carboxylic acid.
Stevia leaf extract is prepared from the sweet leaf, the sunflower family (asteraceae) and is related to lettuce and marigolds. Stevioside and rebaudioside are natural constituents of stevia leaf extract. Stevioside is 250 times sweeter than sucrose, and have the potential to serve as non-caloric sweeteners. Stevia leaf extract is already in use as a food sweetener in a number of South American and Asian countries. Group: Others. Mole weight: 318.45. Stevia Leaf Extract; Stevia Rebaudiana Bertoni. Cat No: EXTC-003.
Steviol
Steviol is a major metabolite of the sweetening compound stevioside. Steviol slows renal cyst growth by reducing AQP2 expression and promoting AQP2 degradation [1]. Uses: Scientific research. Group: Natural products. CAS No. 471-80-7. Pack Sizes: 10 mM * 1 mL; 1 mg; 5 mg; 10 mg; 20 mg. Product ID: HY-N2057.
Steviol is a diterpenoiic carboxylic alcohol and is isolated from the herbs of Stevia rebaudiana. It is the aglycon derivative of natural sweetener steviol glycosides and is found to be highly mutagenic compared to Stevioside. It inhibits the proliferation of the gastrointestinal cancer cells and the human osteosarcoma U2OS cell line in a dose- and time-dependent manner. It also inhibits human organic anion transporters (hOATs) in uptake assays using murine cells from the S2 segment of proximal tubules. It is selective for hOAT1 and hOAT3 over hOAT2 and hOAT4. It increases CYP3A29 expression and enhances pancreatic beta-cell function and taste sensation by potentiation of TRPM5 channel activity. It can be used to treat polycystic kidney disease. It can promote proteasome and lysosome-mediated AQP2 degradation and slow cyst growth by reducing AQP2 transcription. Synonyms: (4α)-13-Hydroxy-kaur-16-en-18-oic Acid; 13-Hydroxy-kaur-16-en-18-oic Acid; 13-Hydroxykaurenoic Acid; Ent-13-hydroxy-kauran-16-en-19-oic Acid; 1H-2,10a-Ethanophenanthrene; 13-O-Glucosylsteviol; Hydroxydehydrostevic Acid; (4R,4aS,6aR,9S,11aR,11bS)-9-hydroxy-4,11b-dimethyl-8-methylenetetradecahydro-6a,9-methanocyclohepta[a]naphthalene-4-carboxylic acid. Grade: 98.5%. CAS No. 471-80-7. Molecular formula: C20H30O3. Mole weight: 318.45.
Steviol
Botanical Source: Group: Biochemicals. Grades: Plant Grade. CAS No. 471-80-7. Pack Sizes: 10mg, 20mg. US Biological Life Sciences.
Worldwide
Steviolbioside
Botanical Source: Group: Biochemicals. Grades: Plant Grade. CAS No. 41093-60-1. Pack Sizes: 10mg. US Biological Life Sciences.
Worldwide
Steviol Glycosides System Suitability
United States Pharmacopeia (USP) Reference Standard. Group: Pharmacopeia & metrological institutes standards.
Steviol methyl ester. Uses: Designed for use in research and industrial production. Additional or Alternative Names: (10S)-13-hydroxy-kaur-16-en-19-oic acid methyl ester; Steriol-methylester; (-)-steviol methyl ester; Steviol methyl ester; (10S)-13-Hydroxy-kaur-16-en-19-saeure-methylester; (4aR)-Hydroxy-4bt,8c-dimethyl-12-methylen-8t-methylcarbonyl-(4arH.8acH)-1.2.4.4a. Product Category: Heterocyclic Organic Compound. CAS No. 14364-16-0. Molecular formula: C21H32O3. Mole weight: 332.477. Purity: 0.96. IUPACName: methyl (5β,8α,9β,10α,13α)-13-hydroxykaur-16-en-18-oate. Product ID: ACM14364160. Alfa Chemistry ISO 9001:2015 Certified.
Stevioside
Stevioside. Synonyms: beta-d-glucopyranosyl(1r, 4as, 7s, 8ar, 10as)-7-(2-o-(beta-d-glucopyranosyl)-alpha-d-glucopyranosyloxy)-1, 4a-dimethyl-12-methyleneperhydro-7, 8a-ethanophenanthren-1-carboxylate; beta-d-glucopyranosylester; kaur-16-en-18-oicacid, 13-((2-o-beta-d-glucopyranosyl-alpha-d-glucopyranosyl)o; steviosin; (4alpha)-beta-d-glucopyranosyl 13-[(2-o-beta-d-glucopyranosyl-beta-d-glucopyranosyl)oxy]kaur-16-en-18-oate;13-[(2-O-beta-D-Glucopyranosyl-alpha-D-glucopyranosyl)oxy]kaur-16-en-18-oic acid beta-D-glucopyranosyl ester. CAS No. 57817-89-7. Pack Sizes: 1 kg. Product ID: CDF4-0161. Molecular formula: C38H60O18. Category: Sweeteners. Product Keywords: Food Ingredients; Sweeteners; Stevioside; CDF4-0161; 57817-89-7; C38H60O18; 260-975-5; 57817-89-7. Purity: 0.99. Color: White. EC Number: 260-975-5. Physical State: Powder. Solubility: DMSO: soluble25mg/mL, clear. Quality Level: 100. Storage: Sealed in dry,2-8°C. Application: The product has a refreshing sweet taste, sweetness is about 200-300 times that of sucrose. Slightly bitter taste at high concentrations, sweet taste in the mouth is not easy to disappear. The product is one of the natural sweeteners closest to sucrose. As low alorie food sweetener, it can low pressure. Boiling Point: 963.3±65.0 °C(Predicted). Melting Point: 198°C. Density: 1.53±0.1 g/cm3(Predicted).
Stevioside
Stevioside. Group: Biochemicals. Alternative Names: Eupatorin; Rebaudin; Stevin; Steviosin. Grades: Plant Grade. CAS No. 57817-89-7. Pack Sizes: 20mg. Molecular Formula: C38H60O18, Molecular Weight: 804.871999999999. US Biological Life Sciences.
Worldwide
Stevioside
Stevioside is an orally active sweetener that can be isolated from Stevia rebaudiana , with antihypertensive, antihyperglycemic, antioxidant, anti-inflammatory and anti-tumor activities [1] [2]. Uses: Scientific research. Group: Natural products. CAS No. 57817-89-7. Pack Sizes: 10 mM * 1 mL; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-N0669.
Stevioside
Pharmacopeia & Metrological Institutes Standards; Food Additives, Flavours & Adulterants. Uses: For analytical and research use. Group: Reagents. Alternative Names: E 960, (4?)-13-[(2-O-?-D-Glucopyranosyl-?-D-glucopyranosyl)oxy]kaur-16-en-18-oic Acid ?-D-Glucopyranosyl Ester, Stevian 50, Stevioside (6CI,7CI), ?-G-Sweet,Kaur-16-en-18-oic acid, 13-[(2-O-?-D-glucopyranosyl-?-D-glucopyranosyl)oxy]-, ?-D-glucopyranosyl ester, (4?)-, 1H-2,10a-Ethanophenanthrene, kaur-16-en-18-oic acid deriv., Steviosin. CAS No. 57817-89-7. Pack Sizes: 30MG.
Stevioside
Application Areas; Herbal Medicinal Products Standards. Uses: For analytical and research use. Group: Reagents. CAS No. 57817-89-7.
Stevioside
United States Pharmacopeia (USP) Reference Standard. Group: Pharmacopeia & metrological institutes standardsfood additives, flavours & adulterants. Alternative Names: E 960, (4?)-13-[(2-O-?-D-Glucopyranosyl-?-D-glucopyranosyl)oxy]kaur-16-en-18-oic Acid ?-D-Glucopyranosyl Ester, Stevian 50, Stevioside (6CI,7CI), ?-G-Sweet,Kaur-16-en-18-oic acid, 13-[(2-O-?-D-glucopyranosyl-?-D-glucopyranosyl)oxy]-, ?-D-glucopyranosyl ester, (4?)-, 1H-2,10a-Ethanophenanthrene, kaur-16-en-18-oic acid deriv., Steviosin.
Stevioside-d2 (90%)
Isotope labelled Stevioside (S686730) is a glycoside from the stevia plant. Stevioside is a natural sweetening agent with sweetness about 250 times that of sugar with negligible effect on blood glucose. Stevioside, much like other steviol glycoside is known for its application in treatment of many diseases like diabetes and high blood pressure. It is also used as a food additive and in dietary supplements. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 2.5mg, 5mg. Molecular Formula: C3713CH58D2O18, Molecular Weight: 807.88. US Biological Life Sciences.
STF-62247 is an autophagy inducer that selectively cytotoxic to VHL-deficient renal cell carcinoma ( IC 50 of 0.625 μM and 16 μM in RCC4 and RCC4/VHL cells, respectively) [1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 315702-99-9. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 25 mg; 50 mg. Product ID: HY-100746.
STh
STh, an Escherichia coli heat-stable toxin, is a 19 amino acid polypeptide encompassing three disulfide bridges. STh is an antigen of interest in the search for a broad coverage enterotoxigenic Escherichia coli (ETEC) vaccine [1]. Uses: Scientific research. Group: Peptides. CAS No. 118447-40-8. Pack Sizes: 1 mg. Product ID: HY-P2695.
STh
STh is a heat stable toxin of Escherichia coli. CAS No. 118447-40-8. Molecular formula: C79H112N22O30S6. Mole weight: 2042.25.
st-Ht31
st-Ht31 is the stearate form of Ht-31 peptide, which can inhibit the PKA/AKAP interaction. Cell permeable. Synonyms: AKOS032962858. CAS No. 188425-80-1. Molecular formula: C129H217N29O39. Mole weight: 2798.27.
St-Ht31 P
Negative control for st-Ht31. Synonyms: stearoyl-Asp-Leu-Ile-Glu-Glu-Ala-Ala-Ser-Arg-Pro-Val-Asp-Ala-Val-Pro-Glu-Gln-Val-Lys-Ala-Ala-Gly-Ala-Tyr-OH; N-stearoyl-L-alpha-aspartyl-L-leucyl-L-isoleucyl-L-alpha-glutamyl-L-alpha-glutamyl-L-alanyl-L-alanyl-L-seryl-L-arginyl-L-prolyl-L-valyl-L-alpha-aspartyl-L-alanyl-L-valyl-L-prolyl-L-alpha-glutamyl-L-glutaminyl-L-valyl-L-lysyl-L-alanyl-L-alanyl-glycyl-L-alanyl-L-tyrosine. Grade: >98%. CAS No. 252869-81-1. Molecular formula: C127H209N29O39. Mole weight: 2766.19.
Stichodactyla helianthus Neurotoxin (ShK)
Stichodactyla helianthus Neurotoxin, a toxin originally isolated from sea anemone Stichodactyla helianthus, inhibits the specific binding of dendrotoxin I to rat brain membranes. Because of its unique structure (containing three intramolecular disulfide bridges) and high affinity for some potassium channels, it may be a useful molecular probe for studying potassium channels. Synonyms: ShK; H-Arg-Ser-Cys-Ile-Asp-Thr-Ile-Pro-Lys-Ser-Arg-Cys-Thr-Ala-Phe-Gln-Cys-Lys-His-Ser-Met-Lys-Tyr-Arg-Leu-Ser-Phe-Cys-Arg-Lys-Thr-Cys-Gly-Thr-Cys-OH (Disulfide bridge: Cys3-Cys35, Cys12-Cys28, Cys17-Cys32); L-Arginyl-L-seryl-L-cysteinyl-L-isoleucyl-L-alpha-aspartyl-L-threonyl-L-isoleucyl-L-prolyl-L-lysyl-L-seryl-L-arginyl-L-cysteinyl-L-threonyl-L-alanyl-L-phenylalanyl-L-glutaminyl-L-cysteinyl-L-lysyl-L-histidyl-L-seryl-L-methionyl-L-lysyl-L-tyrosyl-L-arginyl-L-leucyl-L-seryl-L-phenylalanyl-L-cysteinyl-L-arginyl-L-lysyl-L-threonyl-L-cysteinylglycyl-L-threonyl-L-cysteine cyclic (3→35),(12→28),(17→32)-tris(disulfide); Toxin ShK (Stoichactis helianthus potassium-channel). Grade: ≥95% by HPLC. CAS No. 172450-46-3. Molecular formula: C169H274N54O48S7. Mole weight: 4054.83.
Stichodactyla helianthus neurotoxin (ShK) amide
Stichodactyla helianthus Neurotoxin, a toxin originally isolated from sea anemone Stichodactyla helianthus, inhibits the specific binding of dendrotoxin I to rat brain membranes. Because of its unique structure (containing three intramolecular disulfide bridges) and high affinity for some potassium channels, it may be a useful molecular probe for studying potassium channels. Synonyms: Arg-Ser-Cys-Ile-Asp-Thr-Ile-Pro-Lys-Ser-Arg-Cys-Thr-Ala-Phe-Gln-Cys-Lys-His-Ser-Met-Lys-Tyr-Arg-Leu-Ser-Phe-Cys-Arg-Lys-Thr-Cys-Gly-Thr-Cys-NH2 (Disulfide bond Cys3/Cys35, Cys12/Cys28, Cys17/Cys32). Molecular formula: C169H275N55O47S7. Mole weight: 4053.78.
Stictic acid
Stictic acid. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Scopularic acid. Appearance: Light tan solid. CAS No. 549-06-4. Molecular formula: C19H14O9. Mole weight: 386.3. Purity: 0.95. Product ID: ACM549064. Alfa Chemistry ISO 9001:2015 Certified.
Stigmast-4-ene-3β,6β-diol
Stigmast-4-ene-3β,6β-diol is a natural steroid found in the barks of Ailanthus altissima. Synonyms: (3S,6R,8S,9S,10R,13R,14S,17R)-17-((2R,5R)-5-ethyl-6-methylheptan-2-yl)-10,13-dimethyl-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,6-diol. Grade: >97%. CAS No. 113626-76-9. Molecular formula: C29H50O2. Mole weight: 430.7.
Stigmasta-4,22-dien-3-one
Stigmasta-4,22-dien-3-one can be found in the flower of Magnolia biondii. It has antioxidant activity. Uses: Antioxidant. Synonyms: 4,22-Cholestadien-24-ethyl-3-one. Grade: >98%. CAS No. 55722-32-2. Molecular formula: C29H46O. Mole weight: 410.7.
Stigmasta-4,22-dien-3-one
Stigmasta-4,22-dien-3-one. Group: Biochemicals. Grades: Highly Purified. CAS No. 55722-32-2. Pack Sizes: 10g, 25g, 50g, 100g. Molecular Formula: C29H46O. US Biological Life Sciences.
Worldwide
Stigmasta-4,22-dien-3-one
Stigmasta-4,22-dien-3-one is an antitubercular agent. Stigmasta-4,22-dien-3-one shows cytotoxicity against human HT1080 tumoral cell line with an IC 50 of 0.3 mM [1] [2]. Uses: Scientific research. Group: Natural products. CAS No. 20817-72-5. Pack Sizes: 1 mg; 5 mg. Product ID: HY-N9596.
Stigmastane-3,6-dione,(5a)-
Stigmastane-3,6-dione usually comes from the roots of Piper nigrum. Synonyms: 5α-Stigmastane-3,6-dione. Grade: >98%. CAS No. 22149-69-5. Molecular formula: C29H48O2. Mole weight: 428.7.
Stigmastane-3β,5α,6β-triol
Stigmastane-3β,5α,6β-triol isolated from the fruits of Evodia rutaecarpa. Synonyms: alpha-stigmastane-3 beta,5,6 beta-triol 3-monobenzoate. Grade: 0.98. CAS No. 20835-91-0. Molecular formula: C29H52O3. Mole weight: 448.7.
Stigmastanol
Stigmastanol is the 6-amino derivative isolated from Hypericum riparium. Hypericum riparium A. Chev. is a Cameroonian medicinal plant belonging to the family Guttiferae [1] [2]. Uses: Scientific research. Group: Natural products. CAS No. 83-45-4. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-113494.
Stigmastanol
Stigmastanol. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 24-ALPHA-ETHYLCHOLESTANOL. Appearance: White Solid. CAS No. 83-45-4. Molecular formula: C29H52O. Mole weight: 416.72. Purity: 0.99. Product ID: ACM83454. Alfa Chemistry ISO 9001:2015 Certified.
Stigmasterol
Plant sterol, used as a precursor in the synthesis of progesterone. Group: Biochemicals. Alternative Names: (3 β,22E)-Stigmasta-5,22-dien-3-ol; Stigmasta-5,22-dien-3 β-ol; 24-Ethyl-5,22-cholestadien-3 β-ol; 24 β-Ethyl-5,22-cholestadien-3 β-ol; NSC 8095; Stigmasterin; Serposterol. Grades: Highly Purified. CAS No. 83-48-7. Pack Sizes: 25g, 50g, 100g, 250g. Molecular Formula: C??H??O, Molecular Weight: 412.69. US Biological Life Sciences.
25g Pack Size. Group: Biochemicals, Flavours and Fragrance Materials. Formula: C29H48O. CAS No. 83-48-7. Prepack ID 33403915-25g. Molecular Weight 412.69. See USA prepack pricing.
Stigmasterol
Stigmasterol - Product ID: NST-10-57. Category: Sterols. Purity: 98%. Test method: GC. CAS No. 83-48-7. Pack Sizes: 10g, 20g, 50g, 100g. Appearance: White to beige coloured Powder. Molecular formula: C29H48O. Mole weight: 412.69. Storage: +2 +8 °C.
Stigmasterol
Stigmasterol is a plant sterol which has been focused on the cholesterol-lowering activity and is valued as an anti-stiffness factor in the therapy of rheumatic diseases. Uses: Scientific research. Group: Natural products. CAS No. 83-48-7. Pack Sizes: 100 mg. Product ID: HY-N0131.
Stigmasterol 3-Acetate
Stigmasterol 3-Acetate is a plant sterol found in the leaves of Butea monosperma, Orthosiphon tomentosus, Benth, and orchidaceous plants. Group: Biochemicals. Alternative Names: (3 β,22E)-Stigmasta-5,22-dien-3-ol Acetate; 3 β-Acetoxystigmasta-5,22-diene; NSC 8109; Stigmasteryl Acetate; Stigmasta-5,22-dien-3 β-ol Acetate; (3 β,22E)-Stigmasta-5,22-dien-3 β-ol 3-Acetate. Grades: Highly Purified. CAS No. 4651-48-3. Pack Sizes: 500mg. US Biological Life Sciences.
Worldwide
Stigmasterol glucoside
Stigmasterol glucoside is isolated from the herbs of Perilla frutescens (L.) Britt. Uses: Anticancer agent. Synonyms: poriferasterol monoglucoside; stigmasterol 3-O-beta-D-glucoside; Prosaponin; Stigmasterol 3-glucoside; 3-O-beta-D-glucopyranosylstigmasterol; Stigmasta-5,22-dien-3-O-beta-D-glucopyranoside; (3beta,22E)-stigmasta-5,22-dien-3-yl beta-D-glucopyranoside. Grade: 97%. CAS No. 19716-26-8. Molecular formula: C35H58O6. Mole weight: 574.83.
Stigmasterol glucoside
Stigmasterol glucoside. Group: Biochemicals. Grades: Plant Grade. CAS No. 19716-26-8. Pack Sizes: 5mg. Molecular Formula: C35H58O6, Molecular Weight: 574.84. US Biological Life Sciences.
Worldwide
Stigmatellin
Stigmatellin. CAS No: 91682-96-1
Sarchem Laboratories New Jersey NJ
Stigmatellin A
Stigmatellin A is an antibiotic. Stigmatellin A acts as an aromatic myxobacterial electron transport inhibitor. Stigmatellin A can be isolated from cells of the gliding bacterium S. aurantiaca strain Sga15. Group: Biochemicals. Alternative Names: 2-[(3S, 4S, 5S, 6S, 7E, 9E, 11E)-4, 6-dimethoxy-3, 5, 11-trimethyl-7, 9, 11-tridecatrien-1-yl]-8-hydroxy-5, 7-dimethoxy-3-methyl-4H-1-benzopyran-4-one; 2-[(3S, 4S, 5S, 6S, 7E, 9E, 11E)-4, 6-dimethoxy-3, 5, 11-trimethyl-7, 9, 11-tridecatrienyl]-8-hydroxy-5, 7-dimethoxy-3-methyl-4H-1-benzopyran-4-one. Grades: Highly Purified. CAS No. 94234-27-2. Pack Sizes: 1mg, 2mg, 5mg, 10mg. Molecular Formula: C30H42O7. US Biological Life Sciences.
Worldwide
Stilbamidine dihydrochloride
Stilbamidine dihydrochloride is a diamidine compound derived from Stilbene and used chiefly in the form of its crystalline isethionate salt in treating various fungal infections. Uses: Scientific research. Group: Signaling pathways. Alternative Names: Ba 2652 dihydrochloride; Stilbamidin dihydrochloride. CAS No. 6935-63-3. Pack Sizes: 5 mg; 10 mg; 25 mg. Product ID: HY-U00007A.
Stilbazo
Spectrophotometric reagent for Al and other metals. Group: Uv/visible (uv/vis) spectroscopy. Alternative Names: Stilbene-4,4'-bis[(1-azo)-3,4-dihydroxybenzene]-2,2'-disulfonic Acid Diammonium Salt.