4-(Ethylthio)-2-formamidobutanoic acid CAS 126872-00-2
| CAS No. | 126872-00-2 |
| Molecular Formula | C7H13NO3S |
| Molecular Weight | 191.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(Ethylthio)-2-formamidobutanoic acid (CAS 126872-00-2), molecular formula C7H13NO3S and molecular weight 191.25 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 4-(Ethylthio)-2-formamidobutanoic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 191.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-(Ethylthio)-2-formamidobutanoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H13NO3S |
| Molecular Weight | 191.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 7-Methyl-2-(methylthio)pyrido[2,3-d]pyrimidine (CAS 1256347-64-4)
- N-Allylthiazolo[4,5-c]pyridin-2-amine (CAS 1283006-89-2)
- 5-[(phenylsulfanyl)methyl]-1H-1,2,3-triazole (CAS 1256164-24-5)
- 2-Phenoxythiophen-3-amine (CAS 1287217-69-9)
- (2R,3S,4R,5R)-5-(6-Amino-9H-purin-9-yl)-4-hydroxy-2-(((hydroxy(phosphonooxy)phosphoryl)oxy)methyl)tetrahydrofuran-3-yl 2-(methylamino)benzoate (CAS 85287-55-4)
- 5-Chloro-2,4-dihydroxy-6-methylnicotinamide (CAS 1427013-36-2)
- 7-Chloro-5-methylimidazo[1,2-c]pyrimidine-2-carboxylic acid (CAS 117186-21-7)
- (E)-3-(dimethylamino)-1-(4-morpholinophenyl)prop-2-en-1-one (CAS 1345865-34-0)
- Benzo[c][1,2,5]thiadiazole-4-carboxylic Acid (CAS 3529-57-5)
- 4-[3-(Methoxycarbonyl)phenyl]-1-piperazinecarboxylic acid, 1,1-dimethylethyl ester (CAS 179003-10-2)
- 4-(Benzylamino)-1-ethyl-1H-pyrazole-3-carboxylic acid hydrochloride (CAS 1432026-20-4)
- Linaclotide impurity 37 (CAS CATO-C4X-210637)
- Hydroxyprocaine (CAS 487-53-6)
- C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 127869-51-6)
Why CATO?
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