4-(4-Chlorophenyl)-2-(4-isopropylphenyl)-4-oxobutanoic acid CAS 344281-36-3
| CAS No. | 344281-36-3 |
| Molecular Formula | C19H19ClO3 |
| Molecular Weight | 330.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(4-Chlorophenyl)-2-(4-isopropylphenyl)-4-oxobutanoic acid is closely related to a steroid core, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(4-Chlorophenyl)-2-(4-isopropylphenyl)-4-oxobutanoic acid (CAS 344281-36-3), molecular formula C19H19ClO3 and molecular weight 330.81 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, a hydroxyl group, an ether linkage, chlorine substitution, 4-(4-Chlorophenyl)-2-(4-isopropylphenyl)-4-oxobutanoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 330.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-(4-Chlorophenyl)-2-(4-isopropylphenyl)-4-oxobutanoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H19ClO3 |
| Molecular Weight | 330.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
Related Chlorophenyl Standards
- 2-(2-Chlorophenyl)-4,5-diphenyl-1h-imidazole (CAS 1707-67-1)
- Methyl 4-((4-chlorophenyl)sulfonyl)-3-methylthiophene-2-carboxylate (CAS 175137-60-7)
- 2-(4-Chlorophenyl)-4,5-diphenyl-1H-imidazole (CAS 5496-32-2)
- 4-((4-Chlorophenyl)sulfonyl)-3-methylthiophene-2-carbohydrazide (CAS 845266-19-5)
- 5-(2-Chlorophenyl)-1,3-diphenyl-1H-pyrazole (CAS 55042-82-5)
- 5-(4-Chlorophenyl)-2-{[(4-fluorophenyl)methyl]sulfanyl}pyrimidine (CAS 344281-72-7)
- N-(4-chlorophenyl)-2-(4-(pyridin-2-yl)piperazin-1-yl)acetamide (CAS 303091-90-9)
- 1-(4-Chlorophenyl)-3-[2-(methylsulfanyl)pyrimidin-4-yl]-1,4-dihydropyridazin-4-one (CAS 1263386-33-9)
Recommended Standards
- 4-(4-Chloro-6-(cyclopentylamino)-2-methylpyrimidin-5-yl)benzamide (CAS 917895-99-9)
- 4-Chloro-N-(6-(4-methylpiperazin-1-yl)pyridin-3-yl)benzamide (CAS 439094-46-9)
- 3-Chloro-5-phenyl-5,11-dihydroisoindolo[2,1-a]quinazoline (CAS 75614-94-7)
- 3-Allyl-4-[(4-chlorobenzyl)oxy]-5-ethoxybenzaldehyde (CAS 428470-93-3)
- 4-Bromo-2-isopropyl-5-methoxypyridazin-3(2H)-one (CAS 186792-16-5)
- 2-Fluoro-1,3-dimethylimidazolidin-1-ium hexafluorophosphate(V) (CAS 164298-27-5)
- Diisooctyl azelaate (CAS 26544-17-2)
- N-(5-(5-Bromothiophen-2-yl)-1,3,4-oxadiazol-2-yl)-3-(2-chlorophenyl)acrylamide (CAS 1058189-78-8)
- Ethyl 1-(pyridin-4-yl)cyclopropane-1-carboxylate (CAS 858035-95-7)
- TEtradecanoic acid, 2-[[3-[(1-oxotetradecyl)oxy]-2,2-bis[[(1-oxotetradecyl)oxy]methyl]propoxy]methyl]-2-[[(1-oxotetradecyl)oxy]methyl]-1,3-propanediyl ester (CAS 75587-84-7)
- 4-{4-[(Dipropylamino)carbonyl]anilino}-4-oxobutanoic acid (CAS 940224-30-6)
- 2-Bromo-5-(((tert-butyldiphenylsilyl)oxy)methyl)thiazole (CAS 2143028-11-7)
- 4-(1-Mercaptoethyl)benzoic acid (CAS 112241-24-4)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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 18665070610 / Nicole.chen@cato-chem.com