5,7-Dichloro-4-hydroxyquinoline, 97% CAS 21873-52-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21873-52-9 |
| Molecular Formula | C9H5Cl2NO |
| Molecular Weight | 214.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,7-Dichloro-4-hydroxyquinoline, 97% (CAS 21873-52-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H5Cl2NO. Molecular weight: 214.05 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H5Cl2NO |
| Molecular Weight | 214.05 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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- 4,6-dichloro-1H-indole-3-carbaldehyde (CAS 115666-33-6)
- 4,5-Dichloro-1H-indole-3-carbaldehyde (CAS 115666-42-7)
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Recommended Standards
- 5,7-Dichloro-1H-indole-3-carbaldehyde (CAS 4771-51-1)
- 5,7-Dichloroquinolin-2(1H)-one (CAS 835903-13-4)
- 5-(2,4-Dichlorophenyl)isoxazole (CAS 76344-98-4)
- Methyl 3-chloroimidazo[1,2-b]pyridazine-2-carboxylate (CAS 1207175-35-6)
- 3-(tert-Butyl)isoxazolo[5,4-c]isoxazole (CAS 183666-50-4)
- 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-tosyl-1H-pyrrole (CAS 1218790-43-2)
- 3-Methyl-1-(4-nitrophenyl)urea (CAS 13866-64-3)
- 4-{4-Methyl-2-[3-(trifluoromethyl)phenyl]-1,3-thiazol-5-yl}pyrimidin-2-amine (CAS 499795-87-8)
- 1-Amino-3-(4-bromothiophen-2-yl)propan-2-ol (CAS 1493173-19-5)
- Semaglutide Impurity 75 (CAS CATO-C4X-2226175)
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