4-Bromo-3-methyl-1H-pyrazole hydrobromide CAS 92276-46-5
| CAS No. | 92276-46-5 |
| Molecular Formula | C4H5BrN2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-3-methyl-1H-pyrazole hydrobromide (CAS 92276-46-5) is a high-purity analytical reference standard with the molecular formula C4H5BrN2HBr and a molecular weight of 241.91 g/mol.
Owing to a nitrile group, bromine substitution, 4-Bromo-3-methyl-1H-pyrazole hydrobromide is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 241.91 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Bromo-3-methyl-1H-pyrazole hydrobromide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H5BrN2 HBr |
| Molecular Weight | 241.91 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.) | 1983 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 4,9-Bis(5-bromo-2-thienyl)-6,7-bis[4-[(2-ethylhexyl)oxy]phenyl][1,2,5]thiadiazolo[3,4-g]quinoxaline (CAS 1000000-25-8)
- 14-Bromo-1-tetradecyne (CAS 1000014-24-3)
- 8-Bromo-6-chloro-imidazo[1,2-a]pyridine-2-carboxylic acid (CAS 1000017-98-0)
- ethyl 3-bromo-5-chloroimidazo[1,2-a]pyridine-2-carboxylate (CAS 1000018-03-0)
- 5-bromo-1-methyl-1H-indazol-3-amine (CAS 1000018-06-3)
- 5-Bromo-2-methyl-4-methylsulfonylphenylhydrazine (CAS 1000018-33-6)
- 1-[(5-Bromo-2-methyl-4-methylsulfonyl)phenyl]-piperidine-4-carboxamide (CAS 1000018-34-7)
- 1-[(5-Bromo-2-methyl-4-methylsulfonyl)phenyl]-piperazine (CAS 1000018-35-8)
Recommended Standards
- N-(2-((2-Aminoethyl)(cyclopropyl)amino)cyclohexyl)acetamide (CAS 1353974-65-8)
- 2-Amino-4-(4-methoxyphenyl)-8-methyl-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 331979-97-6)
- N-(6-Acetamidobenzo[d]thiazol-2-yl)-5-methylisoxazole-3-carboxamide (CAS 946274-43-7)
- 2-Bromo-1-(4,5-dimethoxy-2-nitrophenyl)ethanone (CAS 33245-76-0)
- 1-(5-Chloro-2-methylphenyl)-2,2,2-trifluoroethan-1-one (CAS 1256467-25-0)
- 2-Phenylcyclohexanol (CAS 1444-64-0)
- 3-((4-Methoxybenzyl)oxy)benzaldehyde (CAS 108781-14-2)
- 4-(2-Chlorobenzyl)-4H-furo[3,2-b]pyrrole-5-carboxylic acid (CAS 1043466-31-4)
- 1-Methyl-1h-pyrazole-4-carbohydrazide (CAS 170020-91-4)
- Tau Peptide (294-305) (human) trifluoroacetate salt (CAS 1428135-29-8)
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 18665070610 / Nicole.chen@cato-chem.com