4-(3,4-Dihydroxyphenyl)-5-hydroxyisoquinolin-1(2H)-one CAS 656234-48-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 656234-48-9 |
| Molecular Formula | C15H11NO4 |
| Molecular Weight | 269.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(3,4-Dihydroxyphenyl)-5-hydroxyisoquinolin-1(2H)-one (CAS 656234-48-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C15H11NO4. Molecular weight: 269.25 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C15H11NO4 |
| Molecular Weight | 269.25 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
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- 1-(2,4-Dihydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one (CAS 13351-10-5)
- 1-(2,5-Dihydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one (CAS 6342-92-3)
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Recommended Standards
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- 3-Benzyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-carboxylic acid (CAS 932543-44-7)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-N-(4-morpholinophenyl)acetamide (CAS 685108-01-4)
- Ethyl 3-({[(benzyloxy)imino]methyl}amino)-4-methoxythieno[2,3-b]pyridine-2-carboxylate (CAS 341966-63-0)
- 2-(Difluoromethyl)-4-hydroxy-6-(trifluoromethoxy)pyridine-3-acetonitrile (CAS 1804839-36-8)
- 2-(Difluoromethyl)-5-hydroxy-3-nitropyridine-6-methanol (CAS 1805206-20-5)
- 2-Methoxy-N-((2-(methylthio)pyrimidin-5-yl)methyl)ethan-1-amine (CAS 1279208-79-5)
- N-{1-[3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}-1H-pyrazole-3-carboxamide (CAS 1396674-64-8)
- Neuropeptide W-23 (human) (CAS 383415-79-0)
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