4-bromo-1-methyl-1h-pyraZole-5-carbohydrazide CAS 512809-81-3
| CAS No. | 512809-81-3 |
| Molecular Formula | C5H7BrN4O |
| Molecular Weight | 219.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-bromo-1-methyl-1h-pyraZole-5-carbohydrazide (CAS 512809-81-3) is a high-purity analytical reference standard with the molecular formula C5H7BrN4O and a molecular weight of 219.04 g/mol.
The molecular framework of 4-bromo-1-methyl-1h-pyraZole-5-carbohydrazide (C5H7BrN4O) is characterized by an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 4-bromo-1-methyl-1h-pyraZole-5-carbohydrazide 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 | C5H7BrN4O |
| Molecular Weight | 219.04 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related bromo Standards
- 2-(4-bromo-1h-pyraZol-1-yl)acetohydrazide (CAS 1001500-63-5)
- 2-Bromo-3,5-dimethoxypyrazine (CAS 1033610-34-2)
- Methyl 2-(3-bromo-1H-pyrazol-1-yl)acetate (CAS 1034047-87-4)
- 4-Bromo-5-methyl-1H-pyrazole-3-carbohydrazide (CAS 1043909-04-1)
- Methyl 2-(4-bromo-1H-pyrazol-1-yl)acetate (CAS 1072944-71-8)
- 6-Bromo-1,1,1-trifluorohexane (CAS 111670-37-2)
- 2-Bromo-4,5-dimethoxypyrimidine (CAS 1161497-30-8)
- 5-Bromo-4-ethyl-1H-imidazole-2-carboxylic acid (CAS 1171125-11-3)
Recommended Standards
- 4-Bromo-1-methyl-1h-pyrazole-3-carbohydrazide (CAS 400878-08-2)
- 4-Bromo-2,6-dimethoxypyrimidine (CAS 60186-89-2)
- 4-Bromo-1-ethyl-1H-pyrazole-5-carboxylic acid (CAS 514800-97-6)
- 4-Bromo-3,6-dimethoxypyridazine (CAS 262353-33-3)
- 4,6-Dimethyl-3-(2-methylbenzenesulfonyl)-2-(3-methylbutoxy)pyridine (CAS 306978-48-3)
- (4-Aminopyridine-2,6-diyl)dimethanol (CAS 1221640-11-4)
- 1-Phenyl-4-propoxy-1h-pyrazole-3-carboxylic acid (CAS 1152625-34-7)
- (3,5-Dichlorophenyl)(3-fluoro-4-methylphenyl)methanone (CAS 951886-48-9)
- 2-({5-[(3,5-dimethylphenyl)amino]-1,3,4-thiadiazol-2-yl}thio)propanoic acid (CAS 743457-06-9)
- rel-(3R,4S)-4-(4-Fluorophenyl)tetrahydro-3-furanamine (CAS 1063733-97-0)
- Methyl 4-amino-4-(3,4-dimethylphenyl)butanoate (CAS 1183970-58-2)
- 1-(2-hydroxynaphthalen-1-yl)propan-1-one (CAS 33828-93-2)
- 5-Cyclopropoxy-2-methoxy-4-(trifluoromethyl)pyridine (CAS 1243470-61-2)
- Semaglutide Impurity 13 (CAS CATO-C4X-222613)
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