Methyl 2-amino-4-(3-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate CAS 939889-11-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 939889-11-9 |
| Molecular Formula | C20H14N2O6S |
| Molecular Weight | 410.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Methyl 2-amino-4-(3-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate (CAS 939889-11-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H14N2O6S. Molecular weight: 410.40 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C20H14N2O6S |
| Molecular Weight | 410.40 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 2-amino-4-(4-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate (CAS 939894-19-6)
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- Ethyl 6-amino-5-cyano-4-(4-fluorophenyl)-2-[(phenylsulfanyl)methyl]-4H-pyran-3-carboxylate (CAS 478260-22-9)
- 4-Amino-N-(4-(2-(pyridin-3-yl)thiazol-5-yl)pyrimidin-2-yl)benzenesulfonamide (CAS 1210769-98-4)
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Recommended Standards
- 6-Mercaptopurine-9-β-D-ribofuranoside 2,3,5-Triacetate (CAS 3021-21-4)
- 4-(4-{[(2,6-Dimethoxy-4-pyrimidinyl)amino]sulfonyl}anilino)-4-oxobutanoic acid (CAS 94672-50-1)
- Methyl 5-(1-(2-(methoxycarbonyl)thiophen-3-yl)-1H-1,2,3-triazol-4-yl)-3-phenylisoxazole-4-carboxylate (CAS 439111-24-7)
- (2S,3R)-3-aminopentan-2-ol (CAS 482615-46-3)
- N-[4-(6-Methyl[1,3]thiazolo[3,2-b][1,2,4]triazol-5-yl)-1,3-thiazol-2-yl]-N-propylamine (CAS 478067-24-2)
- N-(4-Cyclohexylphenyl)-2-{4-[(2E)-3-phenylprop-2-en-1-yl]piperazin-1-yl}acetamide (CAS 329080-38-8)
- 5-(tert-Butyl)-2-iodopyridine (CAS 1701519-35-8)
- 4-(2,2-difluoroethoxy)benzoic acid (CAS 921623-04-3)
- Miconazole Impurity H nitarte salt (CAS 203264-09-9)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
Why CATO?
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