4-(5-(4-Bromophenyl)-3-(4-methoxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl)-4-oxobutanoic acid CAS 309925-78-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 309925-78-8 |
| Molecular Formula | C20H19BrN2O4 |
| Molecular Weight | 431.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-(5-(4-Bromophenyl)-3-(4-methoxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl)-4-oxobutanoic acid (CAS 309925-78-8), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H19BrN2O4. Molecular weight: 431.28 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C20H19BrN2O4 |
| Molecular Weight | 431.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromophenyl Standards
- 2-[(3-Bromophenyl)methyl]-4-(5-ethyl-1,2,4-oxadiazol-3-yl)-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775337-53-5)
- N-(4-Bromophenyl)-2-((4-(3-cyclopropyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl)thio)acetamide (CAS 1251704-20-7)
- 3-((6-(4-Bromophenyl)-3-cyano-4-(trifluoromethyl)pyridin-2-yl)thio)propanoic acid (CAS 625376-46-7)
- 4-(4-bromophenyl)-2-(3,5-dimethyl-1H-pyrazol-1-yl)-5,6-dihydrobenzo[h]quinazoline (CAS 956965-83-6)
- 1-((4-(4-Bromophenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-3,3-dimethylbutan-2-one (CAS 477329-71-8)
- 1-((4-(4-Bromophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-3,3-dimethylbutan-2-one (CAS 477330-45-3)
- 2-((2-(4-Bromophenyl)-2-oxoethyl)thio)-3-isobutylquinazolin-4(3H)-one (CAS 255865-18-0)
- 3-[(4-Bromophenyl)sulfanyl]-1-(3,5-dichlorophenyl)pyrrolidine-2,5-dione (CAS 301194-49-0)
Recommended Standards
- 3-(7-((4-Bromobenzyl)oxy)-4,8-dimethyl-2-oxo-2H-chromen-3-yl)propanoic acid (CAS 858751-27-6)
- Ethyl 3-((4-bromo-2-methyl-5-oxo-1-phenyl-2,5-dihydro-1H-pyrazol-3-yl)methoxy)benzoate (CAS 937605-03-3)
- 2-((4-Bromo-N-(2-hydroxyethyl)phenyl)sulfonamido)-N-(4-fluorophenyl)acetamide (CAS 256521-73-0)
- (Z)-2-Acetamido-3-(4-cyanophenyl)acrylic acid (CAS 172267-41-3)
- 2-(4-Bromobenzamido)thiophene-3-carboxylic acid (CAS 926241-98-7)
- 3-(Difluoromethyl)-4-fluorotoluene (CAS 1214326-66-5)
- 2-Chloro-5-iodo-7H-pyrrolo[2,3-d]pyrimidine, 97% (CAS 1060815-90-8)
- 3,3,4,4,5,5,6,6,7,7,8,8,8-Tridecafluorooctane-1-sulphonic Acid (CAS 27619-97-2)
- 3-(2,6-Dimethylmorpholine-4-carbonyl)-2,2-dimethylcyclopropane-1-carboxylic acid (CAS 1186647-51-7)
- Tirzepatide Impurity 58 (CAS CATO-C4X-324058)
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