4-(4-Chlorophenyl)-3-methyl-1H-pyrazole CAS 667400-41-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 667400-41-1 |
| Molecular Formula | C10H9ClN2 |
| Molecular Weight | 192.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(4-Chlorophenyl)-3-methyl-1H-pyrazole (CAS 667400-41-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H9ClN2. Molecular weight: 192.64 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H9ClN2 |
| Molecular Weight | 192.64 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
- 1-(3-Chlorophenyl)-5-methyl-1H-pyrazole (CAS 1247358-87-7)
- 1-(2-Chlorophenyl)-5-methyl-1H-pyrazole (CAS 1247358-96-8)
- 4-(3-Chlorophenyl)-1-methyl-1H-pyrazole (CAS 1266991-19-8)
- 1-(3-Chlorophenyl)-4-methyl-1H-pyrazole (CAS 154396-09-5)
- 1-(2-chlorophenyl)-3-methyl-1H-pyrazole (CAS 1613303-64-2)
- (4E)-5-(4-Chlorophenyl)penta-1,4-dien-3-one, E (CAS 1613309-12-8)
- 1-(4-Chlorophenyl)-3-methyl-1H-pyrazole (CAS 27301-77-5)
- 1-(4-Chlorophenyl)-5-methyl-1H-pyrazole (CAS 671182-58-4)
Recommended Standards
- 4-(4-Chlorophenyl)-1-methyl-1H-pyrazole (CAS 82525-26-6)
- 4-(Chloromethyl)-1-phenylpyrazole (CAS 35715-71-0)
- 4-(4-Chlorophenyl)-1-methyl-1H-imidazole (CAS 38980-91-5)
- Ethyl (4-bromoisoxazol-3-yl)carbamate (CAS 1448305-31-4)
- tert-Butyl (4-fluorophenyl)carbamate (CAS 60144-53-8)
- [1,2,4]Triazolo[4,3-c]pyrimidine (CAS 274-81-7)
- 2,3-Dimethyl-6,7-dihydro-3H-pyrrolo[3,4-d]pyrimidin-4(5H)-one (CAS 1243250-20-5)
- 6-Methoxy-1-methyl-1,2,2a,3,4,5-hexahydropyrrolo[4,3,2-de]quinoline (CAS 2824293-64-1)
- Ethyl 2-((1R,3R)-3-(((2S,3S)-1-(2-(dimethylamino)-2-methylpropanamido)-3-methyl-1-oxopentan-2-yl)(methyl)amino)-1-hydroxy-4-methylpentyl)thiazole-4-carboxylate (CAS 2247505-96-8)
- Insulin Degludec Impurity 14 (CAS CATO-C4X-215714)
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 13829788188 / jacky.chen@cato-chem.com