5,7-dichloro-3H-pyrido[4,3-d]pyrimidin-4-one CAS 918898-11-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 918898-11-0 |
| Molecular Formula | C7H11Cl2N3O |
| Molecular Weight | 224.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,7-dichloro-3H-pyrido[4,3-d]pyrimidin-4-one (CAS 918898-11-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H11Cl2N3O. Molecular weight: 224.09 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H11Cl2N3O |
| Molecular Weight | 224.09 g/mol |
| Appearance | 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related dichloro Standards
- 3,5-Dichloro-2-phenylpyridine (CAS 10469-01-9)
- 2,3-Dichloro-4-phenylpyridine (CAS 1255311-43-3)
- 2,4-dichloro-7H-pyrrolo[2,3-d]pyrimidine-5-carbaldehyde (CAS 1638767-57-3)
- 2,4-Dichloro-3-phenylpyridine (CAS 1807184-32-2)
- 5,7-dichloro-2-methyl-3H,4H-pyrrolo[2,1-f][1,2,4]triazin-4-one (CAS 1824632-67-8)
- 2,6-Dichloro-3-phenylpyridine (CAS 18700-11-3)
- 2,4-Dichloro-6-phenylpyridine (CAS 630424-62-3)
- 2,6-Dichloro-4-phenylpyridine (CAS 25297-51-2)
Recommended Standards
- 4,5-Dichloro-2-phenylpyridine (CAS 77597-91-2)
- 6-Thiomorpholinopyridine-3-boronic Acid (CAS 928160-85-4)
- 3-Nitro-6-(trifluoromethyl)pyridine-2,4-diol (CAS 947144-26-5)
- 1-((2,4-Dichloro-5-methylphenyl)sulfonyl)-1H-benzo[d]imidazole (CAS 325812-28-0)
- 4-(1,1-Difluoroethyl)-2-fluoro-1-(trifluoromethyl)benzene (CAS 1138445-19-8)
- 5-Chloro-2-(4-methoxyphenyl)-1H-benzo[d]imidazole (CAS 91437-83-1)
- 2-(1-Benzofuran-2-yl)-1h-imidazole (CAS 150985-54-9)
- 4-(Pentyloxy)-3-(propan-2-yl)benzene-1-sulfonamide (CAS 1094662-80-2)
- 5-(Cyclohexyloxy)-4-methyl-1H-pyrazole-3-carboxylic acid (CAS 1344687-69-9)
- Insulin Degludec Impurity 14 (CAS CATO-C4X-215714)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com