55804-66-5 WM5MO60RUO Coumarin 504 1H,5H,11H-(1)Benzopyrano(6,7,8-ij)quinolizine-10-carboxylic acid, 2,3,6,7-tetrahydro-11-oxo-, ethyl ester Ethyl 2,3,6,7-tetrahydro-11-oxo-1H,5H,11H-(1)benzopyrano(6,7,8-ij)quinolizine-10-carboxylate CCRIS 4963 EINECS 259-825-1 NSC 338967 UNII-WM5MO60RUO CAS 55804-66-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 55804-66-5 |
| Molecular Formula | C18H25NO4 |
| Molecular Weight | 319.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
55804-66-5 WM5MO60RUO Coumarin 504 1H,5H,11H-(1)Benzopyrano(6,7,8-ij)quinolizine-10-carboxylic acid, 2,3,6,7-tetrahydro-11-oxo-, ethyl ester Ethyl 2,3,6,7-tetrahydro-11-oxo-1H,5H,11H-(1)benzopyrano(6,7,8-ij)quinolizine-10-carboxylate CCRIS 4963 EINECS 259-825-1 NSC 338967 UNII-WM5MO60RUO (CAS 55804-66-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H25NO4. Molecular weight: 319.40 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H25NO4 |
| Molecular Weight | 319.40 g/mol |
| Appearance | Off-white to pale 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 1 |
Recommended Standards
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