8-Methoxy-4-oxo-4H-chromene-3-carboxylic acid CAS 59157-78-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 59157-78-7 |
| Molecular Formula | C11H8O5 |
| Molecular Weight | 220.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
8-Methoxy-4-oxo-4H-chromene-3-carboxylic acid (CAS 59157-78-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H8O5. Molecular weight: 220.18 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H8O5 |
| Molecular Weight | 220.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
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- 7-Methoxy-4-oxo-1,4-dihydro-1,5-naphthyridine-3-carboxylic acid (CAS 1352398-02-7)
- 8-Methoxy-2-oxo-2H-chromene-4-carboxylic acid (CAS 1355181-75-7)
- 6-Methoxy-2-oxo-2H-chromene-4-carboxylic acid (CAS 1355224-44-0)
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Recommended Standards
- 8-Methoxy-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid (CAS 90771-54-3)
- 8-Oxo-5,6,7,8-tetrahydro-1H-cyclopenta[d][1,2,4]triazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 842975-47-7)
- 8-Methoxy-2-oxo-2H-chromene-3-carboxylic Acid (CAS 2555-20-6)
- 2-(Difluoromethyl)pyrimidine-5-carboxylic acid (CAS 1260902-00-8)
- N-(3-(Trifluoromethoxy)benzyl)-[3,4'-bipyridin]-5-amine (CAS 821784-76-3)
- (3-(4-(tert-Butyl)benzamido)-2-methylphenyl)boronic acid pinacol ester, 97% (CAS 910235-65-3)
- 2,2-Difluoro-2,3-dihydro-1H-inden-5-amine (CAS 1782541-81-4)
- 4-Methyl-6-(phenyldiazenyl)benzene-1,3-diamine (CAS 5042-54-6)
- tert-Butyl N-[3-(aminooxy)propyl]carbamate (CAS 847609-99-8)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
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