7-OXo-3,7-dihydropyrano[3,2-e]indole-2-carboxylic acid CAS 343595-31-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 343595-31-3 |
| Molecular Formula | C12H7NO4 |
| Molecular Weight | 229.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-OXo-3,7-dihydropyrano[3,2-e]indole-2-carboxylic acid (CAS 343595-31-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C12H7NO4. Molecular weight: 229.19 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C12H7NO4 |
| Molecular Weight | 229.19 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, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related OXo Standards
- 9-Methyl-4,9-dihydropyrano[3,4-b]indole-1,3-dione (CAS 60442-30-0)
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- 6-methyl-2,3-dihydropyrano[2,3-b]pyridin-4-one (CAS 1256825-12-3)
- 2,3-dihydropyrano[2,3-b]pyridin-4-one (CAS 1196153-27-1)
- 2,3-dihydropyrano[2,3-c]pyridin-4-one (CAS 2091452-31-0)
- 2,3-dihydropyrano[3,2-b]pyridin-4-one (CAS 405174-48-3)
- 1,2-Dihydropyrano[2,3-c]pyrazole-3,6-dione (CAS 104615-92-1)
- 5,7-Dihydropyrano[3,4-c]pyrazol-4(1H)-one (CAS 1391732-41-4)
Recommended Standards
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