A directory of where to buy chemicals in the USA, including: distributors, industrial manufacturers, bulk supplies and wholesalers of raw ingredients & finished goods.
SMS2-IN-1 is a potent and highly selective sphingomyelin synthase 2 (SMS2) inhibitor with an IC50 of 6.5 nM and a Kd of 37 nM. SMS2-IN-1 shows 150-fold selectivity for SMS2 over SMS1 (IC50 of 1000 nM)[1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 2098890-15-2. Pack Sizes: 10 mM * 1 mL; 1 mg; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-102041.
S-MTC
S-MTC is a selective type I nitric oxide synthase (NOS) inhibitor. Uses: Enzyme inhibitors. Synonyms: L-Ornithine, N5-[imino(methylthio)methyl]-; N5-[Imino(methylthio)methyl]-L-ornithine; (S)-2-Amino-5-((imino(methylthio)methyl)amino)pentanoic acid; S-Methyl-L-thiocitrulline; S-Methylthiocitrulline; L-S-Methylthiocitrulline; N(delta)-(S-Methylisothioureido)norvaline. Grade: ≥95%. CAS No. 156719-41-4. Molecular formula: C7H15N3O2S. Mole weight: 205.28.
SMTP-1
SMTP-1 is a Staplabin homolog isolated from Stachybotrys microspora IFO30018. It enhanced the binding of Plasminogen to Fibrin. Molecular formula: C25H35NO5. Mole weight: 429.5.
SMTP-2
SMTP-2 is a Staplabin homolog isolated from Stachybotrys microspora IFO30018. It enhanced the binding of Plasminogen to Fibrin. The activity of SMTP-2 is weaker than SMTP-1. Molecular formula: C25H37NO7. Mole weight: 463.6.
SMTP-3
SMTP-3 is a Staplabin homolog isolated from Stachybotrys microspora IFO30018. It enhanced the binding of Plasminogen to Fibrin. Molecular formula: C26H35NO7. Mole weight: 473.6.
SMTP-4
SMTP-4 is a Staplabin homolog isolated from Stachybotrys microspora IFO30018. It enhanced the binding of Plasminogen to Fibrin. Molecular formula: C32H39NO6. Mole weight: 533.7.
SMTP-5
SMTP-5 is a Staplabin homolog isolated from Stachybotrys microspora IFO30018. It enhanced the binding of Plasminogen to Fibrin. Molecular formula: C29H41NO6. Mole weight: 499.6.
SMTP-6
SMTP-6 is a Staplabin homolog isolated from Stachybotrys microspora IFO30018. It enhanced the binding of Plasminogen to Fibrin. Molecular formula: C34H40N2O6. Mole weight: 572.7.
Smyrindioloside. Group: Biochemicals. Grades: Plant Grade. CAS No. 87592-77-6. Pack Sizes: 5mg. Molecular Formula: C20H24O10, Molecular Weight: 424.4. US Biological Life Sciences.
Worldwide
SN 003
SN 003. Group: Biochemicals. Grades: Purified. CAS No. 197801-88-0. Pack Sizes: 10mg. US Biological Life Sciences.
Worldwide
SN-008
SN-008, a less active SN-011 analog, can be used as a negative control [1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 2249106-01-0. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-145009.
SN-011
SN-011 is a potent and selective mouse and human STING inhibitor, with an IC 50 of 76 nM for STING signaling. SN-011 competes with cyclic dinucleotide (CDN) for the binding pocket of the STING dimer, blocking CDN binding and STING activation. SN-011 can be used for the research of STING-driven autoimmune and inflammatory disease [1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 2249435-90-1. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-145010.
sn-1,2-Dioctanoylglycerol (DOG)
Cell permeable lipid shown to mimic the effect of tumor-promoting phorbol diesters on mitogenesis and EGF binding and action in intact cells. Group: Biochemicals. Alternative Names: DOG. Grades: Highly Purified. Pack Sizes: 100mg. US Biological Life Sciences.
Worldwide
sn-1 acyl-lipid ω-3 desaturase (ferredoxin)
The enzyme, characterized from cyanobacteria, introduces a cis double bond at carbon 15 of linoleoyl and γ-linolenoyl groups attached to the sn-1 position of glycerolipids. The enzyme is an ω desaturase, and determines the location of the double bond by counting three carbons from the methyl end of the fatty acid. It is nonspecific with respect to the polar head group of the glycerolipid. cf. EC 1.14.19.35, sn-2 acyl-lipid ω-3 desaturase (ferredoxin). Group: Enzymes. Synonyms: desB (gene name). Enzyme Commission Number: EC 1.14.19.36. 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-1000; sn-1 acyl-lipid ω-3 desaturase (ferredoxin); EC 1.14.19.36; desB (gene name). Cat No: EXWM-1000.
sn-1 linoleoyl-lipid 6-desaturase
The enzyme, characterized from cyanobacteria, introduces a cis double bond at carbon 6 of linoleoyl groups (18:2) attached to the sn-1 position of glycerolipids. The enzyme is a front-end desaturase, introducing the new double bond between a pre-existing double bond and the carboxyl-end of the fatty acid. It is nonspecific with respect to the polar head group of the glycerolipid. Group: Enzymes. Synonyms: desD (gene name). Enzyme Commission Number: EC 1.14.19.46. 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-1011; sn-1 linoleoyl-lipid 6-desaturase; EC 1.14.19.46; desD (gene name). Cat No: EXWM-1011.
sn-1 oleoyl-lipid 12-desaturase
The enzyme, characterized from cyanobacteria, introduces a cis double bond at carbon 12 of oleoyl groups (18:1) attached to the sn-1 position of glycerolipids. The enzyme is a methyl-end desaturase, introducing the new double bond between a pre-existing double bond and the methyl-end of the fatty acid. It is nonspecific with respect to the polar head group of the glycerolipid. Group: Enzymes. Synonyms: desA (gene name). Enzyme Commission Number: EC 1.14.19.45. 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-1010; sn-1 oleoyl-lipid 12-desaturase; EC 1.14.19.45; desA (gene name). Cat No: EXWM-1010.
sn-1 stearoyl-lipid 9-desaturase
The enzyme, characterized from cyanobacteria, introduces a cis double bond at carbon 9 of stearoyl groups (18:0) attached to the sn-1 position of glycerolipids. The enzyme is nonspecific with respect to the polar head group of the glycerolipid. Group: Enzymes. Synonyms: desC (gene name). Enzyme Commission Number: EC 1.14.19.28. 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-0991; sn-1 stearoyl-lipid 9-desaturase; EC 1.14.19.28; desC (gene name). Cat No: EXWM-0991.
SN 2
SN 2 is a potent activator of TRPML3 ion channel with an EC 50 of 1.8 μM [1]. SN 2 also acts as a potent inhibitor of Dengue virus 2 (DENV2) and Zika virus (ZIKV) [2]. Uses: Scientific research. Group: Signaling pathways. CAS No. 823218-99-1. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 50 mg. Product ID: HY-16696.
SN 2
SN 2. Group: Biochemicals. Grades: Purified. CAS No. 823218-99-1. Pack Sizes: 10mg, 50mg. US Biological Life Sciences.
S(+)-N-(2-(2-Thienyl)ethyl)-2-chlorophenyl Glycine Methyl Ester Hydrochloride is an impurity from Clopidogrel (C587250) which acts as an anti-platelet agent. Group: Biochemicals. Alternative Names: (α S) -2-Chloro-α - [ [2- (2-thienyl) ethyl] amino] benzeneacetic Acid Methyl Ester Hydrochloride; (S) -2-chloro-α - [ [2- (2-thienyl) ethyl] amino] benzeneacetic Acid Methyl Ester Hydrochloride; (α S) -2-Chloro-α - [ [2- (2-thienyl) ethyl] amino] benzeneacetic Acid Methyl Ester Hydrochloride; (+)-(S)-Methyl α-[[2-(2-Thienyl)ethyl]amino]-α-(2-chlorophenyl)acetate Hydrochloride; (S)-(+)-Methyl α-[[2-(Thien-2-yl)ethyl]amino]-α-(2-chlorophenyl)acetate Hydrochloride. Grades: Highly Purified. CAS No. 141109-19-5. Pack Sizes: 250mg. US Biological Life Sciences.
Worldwide
sn-2 acyl-lipid ω-3 desaturase (ferredoxin)
This plastidial enzyme desaturates 16:2 fatty acids attached to the sn-2 position of glycerolipids to 16:3 fatty acids, and converts18:2 to 18:3 in both the sn-1 and sn-2 positions. It acts on all 16:2- or 18:2-containing chloroplast membrane lipids, including phosphatidylglycerol, monogalactosyldiacylglycerol, digalactosyldiaclyglycerol, and sulfoquinovosyldiacylglycerol. The enzyme introduces a cis double bond at a location 3 carbons away from the methyl end of the fatty acid. The distance from the carboxylic acid end of the molecule does not affect the location of the new double bond. cf. EC 1.14.19.25, acyl-lipid ω-3 desaturase (cytochrome b5) and EC 1.14.19.36, sn-1 acyl-lipid ω-3 desaturase (ferredoxin). Group: Enzymes. Synonyms: FAD7; FAD8. Enzyme Commission Number: EC 1.14.19.35. 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-0999; sn-2 acyl-lipid ω-3 desaturase (ferredoxin); EC 1.14.19.35; FAD7; FAD8. Cat No: EXWM-0999.
sn-2 palmitoyl-lipid 9-desaturase
The enzyme, characterized from the cyanobacterium Nostoc sp. 36, introduces a cis double bond at carbon 9 of palmitoyl groups (16:0) attached to the sn-2 position of glycerolipids. Group: Enzymes. Synonyms: DesC2. Enzyme Commission Number: EC 1.14.19.27. 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-0990; sn-2 palmitoyl-lipid 9-desaturase; EC 1.14.19.27; DesC2. Cat No: EXWM-0990.
SN 38
SN 38. Group: Biochemicals. Grades: Purified. CAS No. 86639-52-3. Pack Sizes: 10mg, 50mg. US Biological Life Sciences.
Worldwide
SN-38
SN-38 is an active metabolite of the Topoisomerase I inhibitor Irinotecan. SN-38 inhibits DNA and RNA synthesis with IC 50 s of 0.077 and 1.3 μM, respectively. SN-38 is a payload of sacituzumab govitecan (HY -132254) [1] [2] [3] [4] [5]. Uses: Scientific research. Group: Natural products. Alternative Names: 7-Ethyl-10-hydroxycamptothecin. CAS No. 86639-52-3. Pack Sizes: 10 mM * 1 mL; 50 mg; 100 mg; 200 mg; 500 mg. Product ID: HY-13704.
SN-38. (7-Ethyl-10-hydroxycamptothecin)
A metabolite of Irinotecan, a DNA topoisomerase inhibitor. Group: Biochemicals. Alternative Names: 7-Ethyl-10-hydroxycamptothecin. Grades: Highly Purified. Pack Sizes: 5mg. US Biological Life Sciences.
Worldwide
SN-38 Carboxylate Disodium Salt.
The active metabolite of. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
Worldwide
SN-38-d3
SN-38-d3 is the deuterium labeled SN-38. SN-38 (NK012) is an active metabolite of the Topoisomerase I inhibitor Irinotecan. SN-38 (NK012) inhibits DNA and RNA synthesis with IC50s of 0.077 and 1.3 ?M, respectively[1][2][3][4]. Uses: Scientific research. Group: Isotope-labeled compounds. Alternative Names: NK012-d3. CAS No. 718612-49-8. Pack Sizes: 1 mg; 5 mg. Product ID: HY-13704S.
SN-38-[d3]
SN-38-[d3] is a labelled analogue of SN-38. SN-38 is the active metabolite of irinotecan. Uses: Labelled sn-38, a metabolite of irinotecan, a dna topoisomerase inhibitor. Synonyms: SN-38 D3. Grade: 95% atom D. CAS No. 718612-49-8. Molecular formula: C22H17D3N2O5. Mole weight: 395.42.
SN-38 glucuronide
SN-38 glucuronide is an inactive metabolite of the anticancer active molecule Irinotecan (HY-16562) and has toxic effects on the gastrointestinal tract. Irinotecan is a topoisomerase I inhibitor which can be used for researching colon and rectal cancer [1] [2] [3]. Uses: Scientific research. Group: Signaling pathways. Alternative Names: SN-38G. CAS No. 121080-63-5. Pack Sizes: 10 mM * 1 mL; 1 mg; 5 mg; 10 mg; 25 mg; 50 mg. Product ID: HY-126373.
Induction of Glutath. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 200mg. US Biological Life Sciences.
Worldwide
SN40
SN40 is a potent amino acid transport (AAT) inhibitor with K i s of 7.29 μM, 2.42 μM, 2.94 μM, 5.55 μM, 24.43 μM and 5.55 μM for rat ASCT2, human ASCT2, EAAT1, EAAT2, EAAC1 and EAAT5, respectively. SN40 can be used for researching anticancer [1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 2768663-14-3. Pack Sizes: 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-146241.
SN40 hydrochloride
SN40 hydrochloride is a potent amino acid transport (AAT) inhibitor with K i s of 7.29 μM, 2.42 μM, 2.94 μM, 5.55 μM, 24.43 μM and 5.55 μM for rat ASCT2, human ASCT2, EAAT1, EAAT2, EAAC1 and EAAT5, respectively. SN40 hydrochloride can be used for researching anticancer [1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 2768663-15-4. Pack Sizes: 1 mg; 5 mg. Product ID: HY-146241B.
SN50
SN50, a cell-permeable peptide inhibitor of NF-Κb, prevents tissue destruction (epithelial defects/ulceration) in a mouse cornea after a central alkali burn. Synonyms: Nuclear Factor NF-KB Inhibitor SN50; NFkappaB Inhibitor. Grade: ≥97% by HPLC. CAS No. 213546-53-3. Molecular formula: C129H230N36O29S. Mole weight: 2781.5.
SN50
SN50 is a cell permeable inhibitor of NF-?B translocation. Uses: Scientific research. Group: Peptides. CAS No. 213546-53-3. Pack Sizes: 1 mg; 5 mg. Product ID: HY-P0151.
SN52 is a potent, competitive, and cell-permeable inhibitor of NF-?B2. SN52 is a variant of the SN50 peptide and inhibits the nuclear translocation of p52-RelB heterodimers. SN52 has a strong radiosensitization effect on prostate cancer cells. SN52 can be used for cancer research[1]. Uses: Scientific research. Group: Peptides. CAS No. 1071173-56-2. Pack Sizes: 1 mg; 5 mg; 10 mg. Product ID: HY-P3229.
SN 6
SN 6. Group: Biochemicals. Alternative Names: 2-[[4-[ (4-Nitrophenyl) methoxy]phenyl]methyl]-4-thiazolidinecarboxylic Acid Ethyl Ester. Grades: Highly Purified. CAS No. 415697-08-4. Pack Sizes: 10mg. Molecular Formula: C20H22N2O5S, Molecular Weight: 402.46. US Biological Life Sciences.
SN-6. Group: Biochemicals. Grades: Purified. CAS No. 415697-08-4. Pack Sizes: 10mg, 50mg. US Biological Life Sciences.
Worldwide
SN-706
SN-706 is an anthracycline antibiotic produced by Actinomadura reseoviolacea var miuraensis. It is active against gram-positive and gram-negative bacteria, as well as inhibits KB and HeLa cells with IC50 of 0.54 ng/mL. Synonyms: Antibiotic SN 706; SN 706. CAS No. 114511-93-2. Molecular formula: C36H45NO14. Mole weight: 715.7.
SNA-4606-1
SNA-4606-1 is an elaiophylin antibiotic isolated from Streptomyces sp. SNA-4606. It acts as a testosterone 5 alpha-reductase inhibitor with IC50 of 6.6 μmol/L. Molecular formula: C52H84O18. Mole weight: 997.2.
SNA-4606-2
SNA-4606-2 is an elaiophylin antibiotic isolated from Streptomyces sp. SNA-4606. It acts as a testosterone 5 alpha-reductase inhibitor with IC50 of 8.7 μmol/L. Molecular formula: C53H86O18. Mole weight: 1011.24.
SNA-4606-3
SNA-4606-3 is an elaiophylin antibiotic isolated from Streptomyces sp. SNA-4606. It acts as a testosterone 5 alpha-reductase inhibitor. Molecular formula: C55H90O17. Mole weight: 1023.3.
SNA-60-367
SNA-60-367 are a group of aromatase inhibitors produced by soil bacterium, Bacillus sp. SNA-60-367. These inhibitors are a family of acylated decapeptides that differ from each other in terms of amino acid composition and the nature of the fatty acid side chain.
SNA-8073B
SNA-8073A is an isotetracenone antibiotic isolated from the broth filtrate of Streptomyces sp. SNA-8073. It inhibited prolyl endopeptidase of Flavobacterium non-competitively with IC50 of 8.9 μmol/L. Synonyms: SNA-8073-B. Molecular formula: C20H16O5. Mole weight: 336.3.
Snailase, Snail gastrointestinal
Snailase, Snail gastrointestinal is an enzyme mixture composed of more than 20 enzymes, which is often used for enzymatic hydrolysis of purified flavonoid glycosides. Snailase can be obtained from the digestive tract and includes cellulase, sucrase, hemicellulase, pectinase, polygalacturonase, protease, etc[1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 158736-45-9. Pack Sizes: 5 g. Product ID: HY-E70130.
snake venom factor V activator
Known from venom of Vipera russelli. Inhibited by di-isopropyl fluorophosphate, unlike the metallopeptidase russellysin (EC 3.4.24.58) that is specific for factor X. In peptidase family S1 (trypsin family). Group: Enzymes. Enzyme Commission Number: EC 3.4.21.95. CAS No. 471269-12-2, 123757-15-3, 123757-16-4, 123757-17-5, 123757-18-6. Factor V activator. 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-4187; snake venom factor V activator; EC 3.4.21.95; 471269-12-2, 123757-15-3, 123757-16-4, 123757-17-5, 123757-18-6. Cat No: EXWM-4187.
Snake venom peptide like snake venom peptide
It is designed to mimic the action of snake venom by relaxing facial muscles to reduce the appearance of wrinkles and fine lines. This peptide has been used in cosmetic products for its anti-aging, anti-allergy and repair effects. Grade: ≥95%.
Snakin-2
Snakin-2 is an antibacterial peptide isolated from Solanum tuberosum. It has activity against gram-positive bacteria, gram-negative bacteria and fungi. Synonyms: Ser-Tyr-Lys-Lys-Ile-Asp-Cys-Gly-Gly-Ala-Cys-Ala-Ala-Arg-Cys.
Snakin-Z
Snakin-Z is an antimicrobial peptide (AMP) isolated from jujube fruit. It has activity against gram-positive bacteria, gram-negative bacteria and fungi. Synonyms: Cys-Ala-Arg-Leu-Asn-Cys-Val-Pro-Lys-Gly-Thr-Ser-Gly-Asn-Thr-Glu-Thr-Cys-Pro-Cys-Tyr-Ala-Ser-Leu-His-Ser-Cys-Arg-Lys-Tyr-Gly.
SNAP-25 (187-203), derived from the C-terminal helix of synaptosomal-associated protein of 25 kDa (SNAP-25), is a substrate for botulinum neurotoxin (BoNT)/A and can be used as a substrate for quantifying the activity of BoNT/C1(1-430). Molecular formula: C71H125N27O26. Mole weight: 1772.92.
SNAP 5089. Group: Biochemicals. Grades: Purified. CAS No. 157066-77-8. Pack Sizes: 10mg, 50mg. US Biological Life Sciences.
Worldwide
SNAP-8
SNAP-8 is a mimic of the N-terminal end of SNAP-25 which competes with SNAP-25 for a position in the SNARE complex, thereby modulating its formation and preventing the formation of lines and wrinkles. SNAP-8, which connects two amino acids to the sequence of acetyl-hexapeptide-8, is an upgraded version of hexapeptide. A cosmetic formulation acts as an anti-wrinkle ingredient used in anti-aging products. Synonyms: N-Acetyl-L-α-glutamyl-L-α-glutamyl-L-methionyl-L-glutaminyl-L-arginyl-L-arginyl-L-alanyl-L-α-asparagine; Acetyl octapeptide 1; Acetyl octopeptide 3; Ac-Glu-Glu-Met-Gln-Arg-Arg-Ala-Asp-NH2. Grade: >98%. CAS No. 868844-74-0. Molecular formula: C41H70N16O16S. Mole weight: 1075.16.
SNAP8 acetate
SNAP8 acetate is a mimic of the N-terminal end of SNAP-25 which competes with SNAP-25 for a position in the SNARE complex, thereby modulating its formation and preventing the formation of lines and wrinkles. Synonyms: N-Acetyl-L-α-glutamyl-L-α-glutamyl-L-methionyl-L-glutaminyl-L-arginyl-L-arginyl-L-alanyl-L-α-asparagine acetate salt; Acetyl octapeptide 1 acetate salt; Acetyl octopeptide 3 acetate salt; Ac-Glu-Glu-Met-Gln-Arg-Arg-Ala-Asp-NH2.CH3CO2H. Grade: ≥95%. Molecular formula: C43H74N16O18S. Mole weight: 1135.21.
SNAP 94847 hydrochloride
SNAP 94847 hydrochloride. Group: Biochemicals. Grades: Purified. CAS No. 487051-12-7. Pack Sizes: 10mg, 50mg. US Biological Life Sciences.
Worldwide
SNAP 94847 hydrochloride
SNAP 94847 hydrochloride is a novel, high affinity selective melanin-concentrating hormonereceptor1 (MCHR1) antagonist with ( K i=2.2 nM, K d=530 pM), it displays >80-fold and >500-fold selectivity over MCHα1A and MCHD2 receptors respectively. SNAP 94847 hydrochloride binds with high affinity to the mouse and rat MCHR1 with minimal cross-reactivity to other GPCR, ion channels, enzymes, and transporters [1] [3]. Uses: Scientific research. Group: Signaling pathways. CAS No. 1781934-47-1. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-107625A.
snapalysin
Type example of peptidase family M7. Group: Enzymes. Synonyms: small neutral protease; SnpA gene product (Streptomyces lividans). Enzyme Commission Number: EC 3.4.24.77. CAS No. 945859-47-2. 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-4361; snapalysin; EC 3.4.24.77; 945859-47-2; small neutral protease; SnpA gene product (Streptomyces lividans). Cat No: EXWM-4361.
SnAP DA Reagent
SnAP DA Reagent. Group: Salt. CAS No. 1577233-73-8.
The D-isomer of SNAP. Serves as an NO donor. A stable analog of endogenous S-nitroso compounds. A source of NO in vivo which unlike organic O-nitrates does not induce tolerance. Decomposes slowly in solution with a t½ of 37h. Group: Biochemicals. Alternative Names: SNAP(D); N-Acetyl-3-(nitrosothio)-D-valine; N-Acetyl-S-nitroso-D-penicillamine; S-Nitroso-N-acetylpenicillamine. Grades: Purified. CAS No. 79032-48-7. Pack Sizes: 10mg, 50mg. Molecular Formula: C?H??N?O?S 1?4H2O, Molecular Weight: 220.25. US Biological Life Sciences.