4-Bromo-1,3-dimethylpyrazole CAS 5775-82-6
| CAS No. | 5775-82-6 |
| Molecular Formula | C5H7BrN2 |
| Molecular Weight | 175.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 175.03 g/mol gives 4-Bromo-1,3-dimethylpyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Bromo-1,3-dimethylpyrazole (CAS 5775-82-6), molecular formula C5H7BrN2 and molecular weight 175.03 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Bromo-1,3-dimethylpyrazole (C5H7BrN2) contains a nitrile group, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 175.03 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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-1,3-dimethylpyrazole 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 | C5H7BrN2 |
| Molecular Weight | 175.03 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.) | 1958 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
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- 5-Bromo-2,4-dimethyl-1H-imidazole (CAS 1049118-07-1)
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Recommended Standards
- 4-(bromomethyl)-5-methyl-1H-imidazole hydrobromide (CAS 72836-00-1)
- 4-Bromo-1,5-dimethylpyrazole (CAS 5775-86-0)
- 4-(Bromomethyl)-1-methyl-1H-pyrazole (CAS 762237-02-5)
- 4-Bromo-1-ethyl-1H-imidazole (CAS 875340-91-3)
- 3,5-Dimethyl-1-((1-methyl-1h-1,2,4-triazol-5-yl)methyl)-1h-pyrazol-4-amine (CAS 1492726-91-6)
- 1,8-Naphthyridine-2-carbonitrile, 7-chloro- (CAS 2532775-58-7)
- 4-(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)piperidine (CAS 1082828-62-3)
- 2,5-Dihydroxy-N-(2-hydroxyethyl)benzamide (CAS 61969-53-7)
- (2-Ammonioethyl)di-t-butylphosphonium bis(tetrafluoroborate) (CAS 1222630-51-4)
- 5-(Dimethoxymethyl)-1,2,3-trimethoxybenzene (CAS 59276-37-8)
- 4-chloro-N'-(4,5-dihydronaphtho[1,2-b]thiophen-2-ylcarbonyl)benzenesulfonohydrazide 477888-02-1 KS-000034L1 (CAS 477888-02-1)
- Itraconazole Methoxy ButyItriazolone Impurity (CAS CATO-C4X-149710)
- Boc-Ser-OBzl (CAS 59524-02-6)
- Semaglutide impurity 204 (CAS CATO-C4X-2226204)
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