3,5-Dichloro-1H-pyrazolo[4,3-d]pyrimidine CAS 1936350-27-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1936350-27-4 |
| Molecular Formula | C5H2Cl2N4 |
| Molecular Weight | 189.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Dichloro-1H-pyrazolo[4,3-d]pyrimidine (CAS 1936350-27-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H2Cl2N4. Molecular weight: 189.00 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H2Cl2N4 |
| Molecular Weight | 189.00 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Dichloro Standards
- 5,7-Dichloro-1H-pyrazolo[4,3-d]pyrimidine (CAS 1196157-42-2)
- 3,4-dichloro-1H-pyrazolo[3,4-d]pyrimidine (CAS 1262408-00-3)
- 3,6-Dichloro-[1,2,3]triazolo[1,5-a]pyrimidine (CAS 1414959-03-7)
- 2,6-Dichloro-4-isocyanatopyridine (CAS 159178-03-7)
- 4,7-Dichloro-1H-imidazo[4,5-d]pyridazine (CAS 17998-43-5)
- 4,6-dichloro-2H-pyrazolo[3,4-d]pyrimidine (CAS 1821250-07-0)
- 2,8-DIchloro-[1,2,4]triazolo[1,5-a]pyrazine (CAS 1936295-68-9)
- 2,6-Dichloro-3-isocyanatopyridine (CAS 58584-84-2)
Recommended Standards
- 2,4-Dichlorofuro[3,2-d]pyrimidine, 97% (CAS 956034-07-4)
- 3,6-Dichloro-1H-pyrazolo[3,4-b]pyrazine (CAS 2387248-25-9)
- 2,6-Dichlorooxazolo[5,4-b]pyridine (CAS 159870-88-9)
- 4-(2-Aminoethoxy)-N-isopropylbenzamide (CAS 1018579-46-8)
- 5-Ethoxy-N,N-dimethylpyridazin-3-amine (CAS 782388-75-4)
- 4-Bromo-2,3-dihydroxybenzoic acid (CAS 61203-52-9)
- 1,3-Dichloro-5-nitroisoquinoline (CAS 18203-64-0)
- 4-Ethylpiperidin-4-amine dihydrochloride (CAS 1774896-82-0)
- 2-(4-Methoxy-2-(trifluoromethyl)phenyl)-5,5-dimethyl-1,3,2-dioxaborinane (CAS 2096997-63-4)
- Semaglutide impurity 77 (CAS CATO-C4X-222677)
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