4-Bromo-1-methyl-1H-pyrazole hydrochloride CAS 1881331-69-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1881331-69-6 |
| Molecular Formula | C4H5BrN2 HCl |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-1-methyl-1H-pyrazole hydrochloride (CAS 1881331-69-6) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C4H5BrN2 HCl. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C4H5BrN2 HCl |
| Molecular Weight | 197.46 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 6,6'-Dibromo-3,3'-bipyridine (CAS 147496-14-8)
- 5-trifluoromethyl-1H-pyrazolo[3,4-b]pyridine-3-carboxylic acid (CAS 1256820-22-0)
- 1-(2-(Dimethylamino)oxazol-5-yl)ethanone (CAS 344747-06-4)
- N1-((1-Benzylpiperidin-4-yl)methyl)-N1-isopropylethane-1,2-diamine (CAS 1353974-22-7)
- Methyl benzooxazol-2-yl-acetate (CAS 75762-23-1)
- 3-(2-Aminoethyl)-6-cyclopropylpyrimidin-4(3H)-one (CAS 1706456-75-8)
- Semaglutide Impurity 187 (CAS CATO-C4X-2226187)
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