5-Bromo-1-methylpyrazole-4-carbonitrile CAS 1269293-80-2
| CAS No. | 1269293-80-2 |
| Molecular Formula | C5H4BrN3 |
| Molecular Weight | 186.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
5-Bromo-1-methylpyrazole-4-carbonitrile (CAS 1269293-80-2), molecular formula C5H4BrN3 and molecular weight 186.01 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Bromo-1-methylpyrazole-4-carbonitrile (C5H4BrN3) contains a nitrile group, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 186.01 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 5-Bromo-1-methylpyrazole-4-carbonitrile 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 | C5H4BrN3 |
| Molecular Weight | 186.01 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 2-Bromo-4-methyl-1H-imidazole-5-carbonitrile (CAS 113444-53-4)
- 4-Bromo-5-methylfuran-2-carbonitrile (CAS 1399661-99-4)
- 6-Bromo-3-pyridinecarboxaldehyde (CAS 149806-06-4)
- 5-Bromo-1-methyl-1H-imidazole-4-carbonitrile (CAS 1669415-69-3)
- 3-Bromo-1-methylpyrazole-4-carbonitrile (CAS 1703808-62-1)
- 6-bromo-1H-pyrazolo[1,5-a]imidazole (CAS 1784509-28-9)
- 1-Bromo-4-nitrosobenzene (CAS 3623-23-2)
- 2-(4-Bromo-1H-pyrazol-1-yl)acetonitrile (CAS 925224-08-4)
Recommended Standards
- (5-Fluoro-2-(methylthio)phenyl)boronic acid (CAS 1218790-65-8)
- 4-Bromopicolinaldehyde (CAS 131747-63-2)
- 3-Formyl-4-methoxyphenylboronic acid (CAS 121124-97-8)
- 2-Bromopyridine-4-carboxaldehyde (CAS 118289-17-1)
- 1,2,3,6-Tetrahydropyridine-4-carbonitrile hydrochloride (CAS 1423028-00-5)
- 4-[2-(4-Methoxyphenyl)acetyl]-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid (CAS 1326811-36-2)
- 1-(4-(Isopentyloxy)-2-methylphenyl)ethan-1-one (CAS 1443346-73-3)
- Molsidomine Impurity 8 (CAS 1233340-43-6)
- 4-Aminocinnoline-3-carboxamide (CAS 38024-35-0)
- 4-phenyl-2-(piperidin-4-yl)pyrimidine dihydrochloride (CAS 1228456-81-2)
- Ethyl (1S,3S,4S)-rel-2-Boc-5-oxo-2-azabicyclo[2.2.1]heptane-3-carboxylate (CAS 1173197-53-9)
- 3- Methoxy- 2- [(phenylsulfonyl) oxy]benzaldehyde (CAS 2426-85-9)
- Ornidazole Impurity 53 (CAS CATO-C4X-133153)
- Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 90880-35-6)
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