3,5-Dibromo-1H-pyrazole CAS 67460-86-0
| CAS No. | 67460-86-0 |
| Molecular Formula | C3H2Br2N2 |
| Molecular Weight | 225.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 225.87 g/mol gives 3,5-Dibromo-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3,5-Dibromo-1H-pyrazole (CAS 67460-86-0), a certified reference material (molecular formula C3H2Br2N2, MW 225.87 g/mol) for analytical method development and quality control.
Owing to a nitrile group, bromine substitution, 3,5-Dibromo-1H-pyrazole is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 225.87 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3,5-Dibromo-1H-pyrazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C3H2Br2N2 |
| Molecular Weight | 225.87 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1976 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Dibromo Standards
- 3,4-Dibromo-1h-pyrazole (CAS 5932-18-3)
- 4,5-Dibromo-1H-imidazole (CAS 2302-30-9)
- 4,5-Dibromo-1H-1,2,3-triazole (CAS 15294-81-2)
- 3,4-Dibromo-1H-pyrrole (CAS 95972-59-1)
- 4,5-Dibromo-2H-1,2,3-triazole (CAS 22300-52-3)
- 2,3-Dibromo-2-methylpropanenitrile (CAS 28786-90-5)
- 1,2-Dibromo-1,1-difluoroethane (CAS 75-82-1)
- 2,3-Dibromo-1,1,2,3,3-pentadeuteriopropan-1-ol (CAS 117662-57-4)
Recommended Standards
- 3,4-Dibromofuran (CAS 32460-02-9)
- 5,5,5',5'-Tetramethyl-2,2'-bi-1,3,2-dioxaborinane (CAS 201733-56-4)
- 2,5-Dibromofuran (CAS 32460-00-7)
- 1-Bromo-2,4-dichlorobenzene (CAS 1193-72-2)
- (2-Amino-3a,4,5,6,7,7a-hexahydrobenzo[b]thiophen-3-yl)(piperidin-1-yl)methanone (CAS 1443279-28-4)
- (3,4-Dimethoxyphenyl)(1-methyl-1H-1,2,4-triazol-3-yl)methanamine (CAS 1708013-80-2)
- 4-Chloro-N-(5,5-dimethyl-7-oxo-4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)benzamide (CAS 325979-71-3)
- Fenofibrate Impurity 22 (CAS 41806-25-1)
- (5-Cyclopropoxy-4-isopropylpyridin-3-yl)methanamine (CAS 1243324-42-6)
- 2-Hydroxy-4-(methylthio)butyric Acid (65-72% in Water) (CAS 583-91-5)
- 3-({[(4-methylphenyl)carbamoyl]methyl}sulfanyl)propanoic acid (CAS 397290-81-2)
- (S)-(+)-2-Amino-3-hydroxy-3-methylbutanoic Acid (CAS 2280-27-5)
- Ethyl 2-(2-((tert-butoxycarbonyl)amino)thiazol-4-yl)acetate (CAS 82548-78-5)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
Why CATO?
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