Ethyl 2-(hydroxyamino)-4-oxo-4,5-dihydrothiazole-5-carboxylate CAS 251577-82-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 251577-82-9 |
| Molecular Formula | C6H8N2O4S |
| Molecular Weight | 204.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 2-(hydroxyamino)-4-oxo-4,5-dihydrothiazole-5-carboxylate (CAS 251577-82-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C6H8N2O4S. Molecular weight: 204.20 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C6H8N2O4S |
| Molecular Weight | 204.20 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 4-(Hydroxyamino)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (CAS 66266-83-9)
- 2-(Hydroxyamino)-3-oxo-3H-indole-7-carboxylic acid (CAS 681464-76-6)
- 4-(Hydroxyamino)-5-methyl-5-phenyloxazol-2(5H)-one (CAS 426212-05-7)
- 5-(Hydroxyamino)-4-(methylthio)-2-oxo-2H-pyrrole-3-carboxylic acid (CAS 49601-37-8)
- 3-(Hydroxyamino)-3-imino-N-(2-methylphenyl)propanamide (CAS 561008-72-8)
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Recommended Standards
- 7-Fluoro-2,3-dihydropyrrolo[2,1-b]quinazolin-9(1H)-one (CAS 380638-36-8)
- Guaiacol-5-Sulfonic Acid (CAS 879-98-1)
- 6-Fluoro-2-naphthoic acid methyl ester (CAS 5043-00-5)
- 7,9-Dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (CAS 922511-57-7)
- tert-Butyl ((5-carbamoylthiazol-2-yl)methyl)carbamate (CAS 232612-29-2)
- Butyl Triacontanoate (CAS 105025-97-6)
- tert-butyl 3-[(2-nitrophenyl)amino]pyrrolidine-1-carboxylate (CAS 1461707-32-3)
- Methyl 4-chloro-2-fluoro-3-(methylthio)benzoate (CAS 159329-14-3)
- Methyl 2-(2-chloro-5-(trifluoromethyl)phenyl)-2-oxoacetate (CAS 2095410-12-9)
- Semaglutide-d8 Tetratrifluoroacetate (CAS CATO-C4X-222617)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com