1-(3,5-Difluorophenyl)-4-nitro-1H-pyrazole CAS 646037-38-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 646037-38-9 |
| Molecular Formula | C9H5F2N3O2 |
| Molecular Weight | 225.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-(3,5-Difluorophenyl)-4-nitro-1H-pyrazole (CAS 646037-38-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C9H5F2N3O2. Molecular weight: 225.15 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C9H5F2N3O2 |
| Molecular Weight | 225.15 g/mol |
| Appearance | Pale yellow to 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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Difluorophenyl Standards
- 5-(3,4-Difluorophenyl)isoxazole-3-carboxylic Acid (CAS 1017513-51-7)
- 1-(3,5-Difluorophenyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1038261-56-1)
- 1-(3,4-Difluorophenyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1038261-86-7)
- 5-(2,4-Difluorophenyl)isoxazole-3-carboxylic Acid (CAS 1083224-23-0)
- 3-(2,3-Difluorophenyl)isoxazole-5-carboxylic acid (CAS 1126636-77-8)
- 3-(2,6-Difluorophenyl)-1,2-oxazole-5-carboxylic acid (CAS 1152531-95-7)
- 1-(3,5-Difluorophenyl)-1h-1,2,3-triazole-5-carboxylic acid (CAS 1153490-77-7)
- 5-(2,6-Difluorophenyl)isoxazole-3-carboxylic Acid (CAS 1188054-32-1)
Recommended Standards
- (6-nitrobenzo[1,3]dioxol-5-yl) acetate (CAS 7107-08-6)
- 1-Methyl 2-nitroterephthalate (CAS 35092-89-8)
- 5,7-Difluoro-4-hydroxyquinoline-3-carboxylic acid (CAS 185804-34-6)
- [2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]-4-morpholinylphosphinic Acid (CAS 308367-90-0)
- (S)-2'-(Dimethylphosphino)-N,N-dimethyl-[1,1'-binaphthalen]-2-amine (CAS 405928-70-3)
- N-(5-(1-(Methylsulfonyl)piperidine-4-carbonyl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)furan-2-carboxamide (CAS 1351618-16-0)
- Docetaxel Impurity 9 (CAS 149198-47-0)
- Ethyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)furan-3-carboxylate (CAS 1025719-08-7)
- 4-Bromo-1,3-dimethoxy-10-methylacridin-9(10H)-one (CAS 88901-76-2)
- Semaglutide impurity 94 (CAS CATO-C4X-222694)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com