5-chloro-7-methyl-1H-pyrazolo[4,3-d]pyrimidine CAS 2792138-64-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2792138-64-6 |
| Molecular Formula | C6H5ClN4 |
| Molecular Weight | 168.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Description
5-chloro-7-methyl-1H-pyrazolo[4,3-d]pyrimidine (CAS 2792138-64-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H5ClN4. Molecular weight: 168.58 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H5ClN4 |
| Molecular Weight | 168.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Recommended Standards
- 5-chloro-7-methyl-[1,2,4]triazolo[4,3-c]pyrimidine (CAS 56881-37-9)
- 5-Chlorobenzimidazol-2(3H)-one (CAS 2034-23-3)
- 5-chloro-7-methyl-[1,2,4]triazolo[1,5-c]pyrimidine (CAS 72411-32-6)
- 3-(Aminomethyl)-2-cyclopropylpentan-2-ol (CAS 1499520-54-5)
- 2-Chloro-6-(trifluoromethyl)benzimidazole (CAS 86604-86-6)
- 6-Tributylstannyl[1,2,4]triazolo[1,5-a]pyridine (CAS 1204580-82-4)
- 3-(2-Bromophenoxy)-2-methylpropane-1-sulfonyl chloride (CAS 1340502-20-6)
- (S,E)-2-(benzylideneamino)-3-phenylpropan-1-ol (CAS 153924-59-5)
- 4-Chloro-1-isopropyl-1H-pyrazole-3-carboxylic acid (CAS 1006493-69-1)
- D-[Thr]5-Semaglutide (CAS CATO-C4X-2226245)
Why CATO?
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