4-(3,5-Bis(4-bromophenyl)-4,5-dihydro-1h-pyrazol-1-yl)-4-oxobutanoic acid CAS 313967-96-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 313967-96-3 |
| Molecular Formula | C19H16Br2N2O3 |
| Molecular Weight | 480.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(3,5-Bis(4-bromophenyl)-4,5-dihydro-1h-pyrazol-1-yl)-4-oxobutanoic acid (CAS 313967-96-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H16Br2N2O3. Molecular weight: 480.15 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C19H16Br2N2O3 |
| Molecular Weight | 480.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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 Bis Standards
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Recommended Standards
- 2,3-Bis(bis(phosphonomethyl)amino)propanoic acid (CAS 139451-47-1)
- Bis(2,2,3,3,4,4,4-heptafluorobutyl) fumarate (CAS 24120-17-0)
- Dotinurad Impurity 73 (CAS CATO-C4X-249473)
- 2-Hydrazinyl-5-methylpyrimidin-4-amine (CAS 33705-11-2)
- (4-((6-Methylpyridazin-3-yl)oxy)phenyl)(morpholino)methanone (CAS 1251557-96-6)
- 1-Methyl-5,6-dihydrocyclopenta[c]pyrazol-4(1H)-one (CAS 344252-05-7)
- n-((4-Methylthiazol-5-yl)methyl)propan-1-amine (CAS 1152850-95-7)
- Tetramethyl 5,5,8-trimethyl-5,6-dihydrospiro[thiopyrano[2,3-c]quinoline-1,2'-[1,3]dithiole]-2,3,4',5'-tetracarboxylate (CAS 305343-76-4)
- 3-Chloro-2-(2-methylpropoxy)pyridin-4-ol (CAS 1881293-61-3)
- Hexapeptide-1 (CAS CATO-CPTD788821)
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