3-Bromo-2-methyl-7-(thiophen-2-yl)pyrazolo[1,5-a]pyrimidine CAS 439107-63-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 439107-63-8 |
| Molecular Formula | C11H8BrN3S |
| Molecular Weight | 294.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromo-2-methyl-7-(thiophen-2-yl)pyrazolo[1,5-a]pyrimidine (CAS 439107-63-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H8BrN3S. Molecular weight: 294.17 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H8BrN3S |
| Molecular Weight | 294.17 g/mol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 3-(Trifluoromethyl)phenyl trifluoromethanesulfonate (CAS 199188-30-2)
- 3-Bromo-4-methoxy-N,N-dimethylbenzenesulfonamide (CAS 358665-70-0)
- 2-(Trifluoromethyl)phenyl trifluoromethanesulphonate (CAS 199188-29-9)
- 1-(Cyclopropylmethyl)-3,5-dimethyl-1H-pyrazole-4-sulfonyl chloride (CAS 1183992-83-7)
- 1-(6-Methylpyridin-3-yl)propan-1-one (CAS 859055-95-1)
- 5-(2-Methoxyphenyl)-1,3,4-oxadiazole-2-carbaldehyde (CAS 944907-11-3)
- 2-Chloro-n-(2,3-dihydro-1,4-benzodioxin-2-ylmethyl)propanamide (CAS 1225977-50-3)
- (2-butyl-4-chloro-1-nitroso-1H-imidazole-5-yl)methanol (CAS CATO-C3D-26204)
- Dimethyl 4-hydroxy-5-methylphthalate (CAS 22481-13-6)
- Semaglutide impurity 36 (CAS CATO-C4X-222636)
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