Methyl 2-amino-4-(2,4-dichlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate CAS 923559-99-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 923559-99-3 |
| Molecular Formula | C20H13Cl2NO4S |
| Molecular Weight | 434.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 2-amino-4-(2,4-dichlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate (CAS 923559-99-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C20H13Cl2NO4S. Molecular weight: 434.29 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C20H13Cl2NO4S |
| Molecular Weight | 434.29 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
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- 2-(6-Amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-2-oxoethyl 2-(furan-2-yl)quinoline-4-carboxylate (CAS 522624-94-8)
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Recommended Standards
- N-(2,4-dichloro-5-(2-methoxyethoxy)phenyl)-N-(phenylsulfonyl)glycine (CAS 338967-51-4)
- {4-[(4-chlorophenyl)sulfanyl]-3-nitrophenyl}methyl 3-chlorobenzoate (CAS 320424-11-1)
- N-(5-(4-Bromophenyl)-1,3,4-oxadiazol-2-yl)-2,2-diphenylacetamide (CAS 897735-69-2)
- Tert-butyl (R)-4-(2-aminopropyl)piperazine-1-carboxylate dihydrochloride (CAS 1303975-03-2)
- methyl 5-(hydroxymethyl)-1H-pyrrole-2-carboxylate (CAS 1215961-78-6)
- Dronedarone Impurity 59 (CAS 13422-90-7)
- 2-(Aminomethyl)-6-bromo-3-(difluoromethyl)pyridine (CAS 1806778-31-3)
- N1,N2-Dibenzylideneethane-1,2-diamine (CAS 104-71-2)
- 2-(2-Hydroxy-2-phenylethyl)-6-phenylpyridazin-3(2H)-one (CAS 59594-40-0)
- [D-Ser8]-Semaglutide A (CAS CATO-C4X-2226116)
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