4-Chloro-1-(4-chlorobenzyl)-1H-pyrazole-3-carboxylic acid CAS 1281872-53-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1281872-53-4 |
| Molecular Formula | C11H8Cl2N2O2 |
| Molecular Weight | 271.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-1-(4-chlorobenzyl)-1H-pyrazole-3-carboxylic acid (CAS 1281872-53-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C11H8Cl2N2O2. Molecular weight: 271.10 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C11H8Cl2N2O2 |
| Molecular Weight | 271.10 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 2-Chloro-N-(4-(4-chlorophenyl)isoxazol-5-yl)acetamide (CAS 1232789-66-0)
- 4-Chloro-1-[(2-chlorophenyl)methyl]-1H-pyrazole-3-carboxylic acid (CAS 1281872-55-6)
- 2-Chloro-n-[5-chloro-2-(1h-1,2,4-triazol-1-yl)phenyl]acetamide (CAS 792953-83-4)
- 4-Chloro-2-(3-chlorophenyl)-5-hydrazinylpyridazin-3(2H)-one (CAS 320421-69-0)
- 4-Chloro-N-(4-chloro-3-methylisoxazol-5-yl)benzamide (CAS 478262-43-0)
- (3-Chloro-4-fluorophenyl)(3-chlorophenyl)methanol (CAS 844683-45-0)
- (3-Chloro-4-fluorophenyl)(4-chlorophenyl)methanol (CAS 844683-34-7)
- (3-Chloro-5-fluorophenyl)(3-chlorophenyl)methanol (CAS 844683-46-1)
Recommended Standards
- Ethyl 2,3-dichloroquinoxaline-6-carboxylate (CAS 1268865-79-7)
- 2-(4-(3,4-Dichlorophenyl)-1H-pyrazol-1-yl)acetic acid (CAS 1267250-16-7)
- Ethyl 2,4-dichloro-1,5-naphthyridine-3-carboxylate (CAS 1312605-84-7)
- Methyl 2-(1-amino-2-methylcyclohexyl)acetate (CAS 1529040-59-2)
- 3-Chloro-2-{[5-(4-chlorobenzenesulfonyl)thiophen-2-yl]methyl}-5-(trifluoromethyl)pyridine (CAS 321430-96-0)
- 2-Chloro-1-(2,4-dihydroxy-3-methoxyphenyl)ethanone (CAS 69151-93-5)
- 1-Acetyl-2-amino-4,5-dihydro-1H-imidazole-5-carboxylic acid (CAS 89465-27-0)
- 243128-47-4 3'-fluoro-4'-(trifluoromethyl)benzophenone 3-Fluoro-4-(trifluoromethyl)benzophenone (CAS 243128-47-4)
- 3-Phenoxypropane-1-sulfonyl chloride (CAS 3384-05-2)
- (His32,Leu34)-Neuropeptide Y (32-36) (CAS 168916-68-5)
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