5-bromo-1-methyl-1H-Pyrazole CAS 361476-01-9
| CAS No. | 361476-01-9 |
| Molecular Formula | C4H5BrN2 |
| Molecular Weight | 161.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-bromo-1-methyl-1H-Pyrazole (C4H5BrN2) contains a nitrile group, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 5-bromo-1-methyl-1H-Pyrazole (CAS 361476-01-9), a certified reference material (molecular formula C4H5BrN2, MW 161.00 g/mol) for analytical method development and quality control.
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 5-bromo-1-methyl-1H-Pyrazole 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 |
| Molecular Weight | 161.00 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related bromo Standards
- 2-Bromo-2-cyclopentenone (CAS 10481-34-2)
- 4-Bromo-5-methyl-1H-pyrazole (CAS 1076223-98-7)
- 2-Bromo-5-methylfuran (CAS 123837-09-2)
- 4-Bromo-3-methylpyrazole (CAS 13808-64-5)
- 3-Bromo-1-methyl-1<I>H</I>-pyrazole (CAS 151049-87-5)
- 4-Bromo-1-methyl-1H-pyrazole (CAS 15803-02-8)
- 4-Bromo-5-methylimidazole (CAS 15813-08-8)
- 4-Bromo-2-methyl-1H-imidazole (CAS 16265-11-5)
Recommended Standards
- 4-Bromocyclopent-2-en-1-one (CAS 765-56-0)
- 5-Bromo-3-methyl-1H-pyrazole (CAS 5744-68-3)
- 4-Bromo-2-methylfuran (CAS 24666-43-1)
- Iodoethane-d5 (stabilized with copper) (CAS 6485-58-1)
- bis-(2-thienyl) methane (CAS 4341-34-8)
- 1-Bromo-1,1-difluoro-2-heptene (E/Z) (CAS 262296-38-8)
- 4-(1H-Benzimidazol-2-yl)-1-(4-ethoxyphenyl)pyrrolidin-2-one (CAS 615281-70-4)
- 2-methyl-1-[(1-methyl-1H-imidazol-2-yl)methyl]piperazine (CAS 1250564-62-5)
- 4-(Cyclopentylmethoxy)-3-fluoroaniline (CAS 946663-82-7)
- 2,2-Difluoro-1,3-dimethylhexahydropyrimidine (CAS 497181-15-4)
- 1,4-Dimethyl-1,4-diazepane-6-carboxylic acid dihydrochloride (CAS 2044714-08-9)
- 6-Bromo-2-(pyridin-3-yl)-[1,2,4]triazolo[1,5-a]pyridine (CAS 1428747-22-1)
- 6-fluoro-[1,2,4]triazolo[4,3-a]pyridine (CAS 1019024-79-3)
- [D-Ser8]-Semaglutide A (CAS CATO-C4X-2226116)
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