4-[5-(4-methoxyphenyl)-3-phenyl-4,5-dihydro-1h-pyrazol-1-yl]-4-oxobutanoic acid CAS 313404-87-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 313404-87-4 |
| Molecular Formula | C20H20N2O4 |
| Molecular Weight | 352.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-[5-(4-methoxyphenyl)-3-phenyl-4,5-dihydro-1h-pyrazol-1-yl]-4-oxobutanoic acid (CAS 313404-87-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H20N2O4. Molecular weight: 352.38 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C20H20N2O4 |
| Molecular Weight | 352.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 4-[(2Z)-3-(2H-1,3-Benzodioxol-5-yl)prop-2-enoyl]phenyl 2,2-dimethylpropanoate (CAS 306730-22-3)
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- 4,4'-((2-Hydroxy-5-methyl-1,3-phenylene)bis(methylene))bis(benzene-1,3-diol) (CAS 93933-64-3)
- 5-[2-(trimethylsilyl)ethynyl]pyridine-3-carbonitrile (CAS 866683-29-6)
- 4-Chloro-2-[(4-fluorobenzoyl)amino]benzoic acid (CAS 38464-02-7)
- (S)-1-(5-fluoropyrimidin-2-yl)ethan-1-amine (CAS 905587-29-3)
- (4Z)-1-(2-Chlorophenyl)-N-[(4-chlorophenyl)methoxy]-2-phenyl-4,5,6,7-tetrahydro-1H-indol-4-imine (CAS 338979-02-5)
- 1-(5-Fluoro-2-methylphenyl)guanidine (CAS 41213-73-4)
- N-((tetrahydro-2H-pyran-4-yl)methyl)butan-2-amine (CAS 1247138-21-1)
- Influenza PR8 Hemagglutinin Peptide (110-119) (H-6312.0005) (CAS 132031-50-6)
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