(Z)-4-(4-methoxybenzylidene)-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one CAS 39143-07-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 39143-07-2 |
| Molecular Formula | C18H16N2O2 |
| Molecular Weight | 292.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order (Z)-4-(4-methoxybenzylidene)-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one (CAS 39143-07-2) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C18H16N2O2. Molecular weight: 292.33 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C18H16N2O2 |
| Molecular Weight | 292.33 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.) | 1968 |
| Nitrogen Atoms | 2 |
Related Z Standards
- 4-(4-Methoxybenzylidene)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (CAS 18808-85-0)
- 1-(2-(4-Methoxybenzylidene)hydrazinyl)-4-methylphthalazine (CAS 121307-78-6)
- 50764-85-7 BIS(4-METHOXYBENZYLIDENE)ACETONE (CAS 50764-85-7)
- N-(4-Methoxybenzylidene)-4-methylbenzenesulfonamide (CAS 14674-38-5)
- (E)-2-(4-methoxybenzylidene)-4-methyl-3-oxo-4-(1H-1,2,4-triazol-1-yl)pentanenitrile (CAS 338758-21-7)
- (E)-2-((4-Methoxybenzylidene)amino)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile (CAS 1537173-79-7)
- p-Methoxybenzylidene p-biphenylamine (CAS 25543-63-9)
- 2-[(4-Methoxybenzylidene)amino]fluorene (CAS 5424-78-2)
Recommended Standards
- (S)-4-(tert-butoxy)-2-((R)-2,3-dihydrobenzofuran-3-yl)-4-oxobutanoic acid (CAS 2426657-35-2)
- 1-(3-Methylbenzyl)-4-phenyl-1,4-dihydropyrazine-2,3-dione (CAS 904525-72-0)
- (R)-8-hydroxy-3-methyl-1,2,3,4-tetrahydrotetraphene-7,12-dione (CAS 681001-30-9)
- (R)-tert-Butyl 3-((6-(diethylamino)pyrimidin-4-yl)amino)pyrrolidine-1-carboxylate (CAS 1354000-17-1)
- 4-[(4-chloro-1h-pyrazol-1-yl)methyl]-5-methylthiophene-2-carbaldehyde (CAS 1006448-83-4)
- 4-[(Cyclopentylamino)sulfonyl]benzoyl chloride (CAS 937688-15-8)
- WYE-687 (CAS 1062161-90-3)
- 2-(4-Chloro-3-ethoxy-2-fluorophenyl)acetonitrile (CAS 1323966-15-9)
- Abemaciclib Impurity 100 (CAS 658072-14-1)
- Tirzepatide Impurity 52 (CAS CATO-C4X-324052)
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