4-bromo-5-iodo-1,3-dimethyl-1H-pyrazole CAS 94989-97-6
| CAS No. | 94989-97-6 |
| Molecular Formula | C5H6BrIN2 |
| Molecular Weight | 300.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
4-bromo-5-iodo-1,3-dimethyl-1H-pyrazole (CAS 94989-97-6) is a high-purity analytical reference standard with the molecular formula C5H6BrIN2 and a molecular weight of 300.92 g/mol.
The molecular framework of 4-bromo-5-iodo-1,3-dimethyl-1H-pyrazole (C5H6BrIN2) is characterized by a nitrile group, bromine/iodine 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. 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.
Physical & Chemical Properties
| Molecular Formula | C5H6BrIN2 |
| Molecular Weight | 300.92 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 |
| 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.) | 1984 |
| Halogen Content | Br/I-containing |
| Nitrogen Atoms | 2 |
Related bromo Standards
- 1-Bromo-5-chloro-2-(chloromethoxy)-3-nitrobenzene (CAS 1503833-44-0)
- 5-Bromo-1-ethyl-4-iodo-1H-pyrazole (CAS 2739830-15-8)
- 5-Bromo-3-(iodomethyl)-1-methyl-1H-pyrazole (CAS 2758239-96-0)
- 2-Bromo-5-(bromomethyl)-4-(difluoromethyl)pyridine (CAS 1805310-34-2)
- 2-Bromo-6-(bromomethyl)-4-(difluoromethyl)pyridine (CAS 1806003-00-8)
- 2-Bromo-3-(bromomethyl)-5-(difluoromethyl)pyridine (CAS 1806764-58-8)
- 4-Bromo-2-fluoro-1-iodobenzene (CAS 105931-73-5)
- 4-Bromo-1-fluoro-2-iodobenzene (CAS 116272-41-4)
Recommended Standards
- 4,5,6,7-Tetrachloro-2-hydroxy-isoindole-1,3-dione 85342-65-0 KS-0000191P (CAS 85342-65-0)
- Cis-vaccenoylchloride (CAS 95548-26-8)
- 2,3-Dibromo-6-(difluoromethyl)-4-methylpyridine (CAS 1804714-91-7)
- 4-Chloro-3-iodobenzoyl chloride (CAS 42860-17-3)
- Ethyl 2-(4-(trifluoromethoxy)phenyl)acetate (CAS 1206550-93-7)
- 1-(Pyrazin-2-yl)urea (CAS 86525-14-6)
- 5-(4-Nitrophenyl)pentanoic acid (CAS 20492-10-8)
- 2-Chloro-6-methylpyridine 1-oxide (CAS 52313-59-4)
- N-(4-fluorobenzyl)-4-phenyl-1,3-thiazol-2-amine (CAS 724414-30-6)
- (S)-methyl 2-(tert-butoxy)-2-((R)-4-(2,3-dihydropyrano[4,3,2-de]quinolin-7-yl)-2-methylquinolin-3-yl)acetate (CAS 1402714-51-5)
- Furan-2,3,4,5-tetracarbaldehyde (CAS 37812-28-5)
- 4-(Difluoromethyl)-2-iodo-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine (CAS 1806029-83-3)
- 4-Chloro-2-fluoropyridine-3-carboxylic acid (CAS 1211584-03-0)
- Semaglutide impurity 270 (CAS CATO-C4X-2226270)
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