4-hydroxy-1-(2,4,5-trichlorophenyl)-1H-pyrazole-3-carboxylic acid CAS 1152972-73-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1152972-73-0 |
| Molecular Formula | C10H5Cl3N2O3 |
| Molecular Weight | 307.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-hydroxy-1-(2,4,5-trichlorophenyl)-1H-pyrazole-3-carboxylic acid (CAS 1152972-73-0), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C10H5Cl3N2O3. Molecular weight: 307.52 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C10H5Cl3N2O3 |
| Molecular Weight | 307.52 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 |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 5-Chloro-4-(dichloromethyl)-3-(4-nitrophenyl)isoxazole (CAS 116470-17-8)
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- 5-Chloro-N,N-bis(2-methoxyethyl)-4-tosylthiazol-2-amine (CAS 519150-41-5)
- Methyl 2-({[N'-(diphenylmethylidene)hydrazinecarbonyl]methyl}sulfanyl)benzoate (CAS 341968-04-5)
- 9,10-Bis(2-(4,5-dihydro-1H-imidazol-2-yl)hydrazono)methyl)anthracene (CAS 78186-34-2)
- (R)-Telaprevir (CAS 923270-50-2)
- (2R)-2-amino-2-{3-tert-butylbicyclo[1.1.1]pentan-1-yl}acetic acid (CAS 1932128-02-3)
- Semaglutide impurity 208 (CAS CATO-C4X-2226208)
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