4-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)-2-hydroxybenzoic acid CAS 55815-20-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 55815-20-8 |
| Molecular Formula | C19H11NO5 |
| Molecular Weight | 333.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)-2-hydroxybenzoic acid (CAS 55815-20-8) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C19H11NO5. Molecular weight: 333.29 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C19H11NO5 |
| Molecular Weight | 333.29 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 3-[[[1-Methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]carbonyl]amino]-2-thiophenecarboxylic Acid Methyl Ester (CAS 293326-85-9)
- N-(Furan-2-ylmethyl)-2-((6-oxo-4-(trifluoromethyl)-1,6-dihydropyrimidin-2-yl)thio)acetamide (CAS 887196-62-5)
- 2-{[4-(trifluoromethyl)-2-pyridyl]oxy}ethyl 4-methyl-1,2,3-thiadiazole-5-carboxylate (CAS 257625-01-7)
- N-(2-Hydroxyethyl)-N-methyl-3-piperidinecarboxamide hydrochloride (CAS 1220028-27-2)
- Azepan-1-yl(benzo[d]thiazol-2-yl)(phenyl)phosphine oxide (CAS 262603-91-8)
- Tiotropium impurity 49 (CAS CATO-C4X-176449)
- 3-(1H-Benzo[d]imidazol-2-yl)propan-1-ol (CAS 2403-66-9)
- 3-(6-Methoxypyridin-2-yl)-2-methylpropanoic acid (CAS 1543235-65-9)
- 3-Ethylbenzonitrile (CAS 34136-57-7)
- Semaglutide impurity 66 (CAS CATO-C4X-222666)
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