4-Mercapto-2-oxobutanoic acid CAS 4273-28-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4273-28-3 |
| Molecular Formula | C4H6O3S |
| Molecular Weight | 134.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 4-Mercapto-2-oxobutanoic acid (CAS 4273-28-3) pharmaceutical standards reference standard. Molecular formula: C4H6O3S. Molecular weight: 134.15 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C4H6O3S |
| Molecular Weight | 134.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |
Related Mercapto Standards
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- 3-Mercapto-2-methyl-1-pentanol (mixture of diastereoisomers) (CAS 227456-27-1)
- 3-Mercapto-4-methyl-1-pentanol (CAS 933455-14-2)
- 3-Mercapto-1-hexanol (CAS 51755-83-0)
- 2-Mercapto-5,3,4-thiazine 2H-1, tetrahydro- 4H-1, 5,6-dihydro- 5554-48-3 NSC-65296 NSC65296 WLN: T6N CS AUTJ BSH (CAS 5554-48-3)
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Recommended Standards
- 4-Fluorobutyl acetate (CAS 373-09-1)
- 5-Fluoro-1H-indene (CAS 52031-15-9)
- 4-Ethynyl-1-fluoro-2-methylbenzene (CAS 351002-93-2)
- 2,6-Dichloro-3-cyclopropylpyridine (CAS 1211529-21-3)
- 1-(1-Methyl-1H-benzoimidazol-2-yl)-piperidine-4-carboxylic acid (CAS 947015-83-0)
- 2'-Hydroxydaidzein (CAS 7678-85-5)
- Lumateperone Impurity 13（and enantiomer） (CAS 313544-77-3)
- 4-Bromo-1-(2-fluoroethyl)-3-(propoxymethyl)-1H-pyrazole (CAS 1856073-62-5)
- 3-Amino-6-bromoquinolin-4-ol (CAS 1153094-27-9)
- [D-Glu]3-Semaglutide (CAS CATO-C4X-2226253)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com