(3-Chlorobenzylidene)acetone (3E)-4-(3-chlorophenyl)but-3-en-2-one 20766-36-3 4-(3-chlorophenyl)but-3-en-2-one CAS 20766-36-3
| CAS No. | 20766-36-3 |
| Molecular Formula | C10H9ClO |
| Molecular Weight | 180.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3-Chlorobenzylidene)acetone (3E)-4-(3-chlorophenyl)but-3-en-2-one 20766-36-3 4-(3-chlorophenyl)but-3-en-2-one (C10H9ClO) contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
(3-Chlorobenzylidene)acetone (3E)-4-(3-chlorophenyl)but-3-en-2-one 20766-36-3 4-(3-chlorophenyl)but-3-en-2-one (CAS 20766-36-3) is a high-purity analytical reference standard with the molecular formula C10H9ClO and a molecular weight of 180.63 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures (3-Chlorobenzylidene)acetone (3E)-4-(3-chlorophenyl)but-3-en-2-one 20766-36-3 4-(3-chlorophenyl)but-3-en-2-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H9ClO |
| Molecular Weight | 180.63 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
Related Chlorobenzylidene Standards
- (E)-2-(4-chlorobenzylidene)-1,1-dimethylhydrazine (CAS 22699-29-2)
- 2-(4-Chlorobenzylidene)malononitrile (CAS 1867-38-5)
- 2-(3-Chlorobenzylidene)malononitrile (CAS 2972-73-8)
- O-Chlorobenzylidene malononitrile (CAS 2698-41-1)
- (E)-2-(2-Chlorobenzylidene)hydrazinecarboximidamide (CAS 951441-04-6)
- (E)-2-(4-chlorobenzylidene)hydrazine-1-carboxamide (CAS 5315-86-6)
- (E)-2-(2-Chlorobenzylidene)-5-oxopyrazolidin-2-ium-1-ide (CAS 1164110-98-8)
- (E)-2-(4-Chlorobenzylidene)-5-oxopyrazolidin-2-ium-1-ide (CAS 1164115-67-6)
Recommended Standards
- tert-Butyl (1-chloroethyl) carbonate (CAS 98015-51-1)
- 2,4-Dimethoxy-6-chloropyrimidine 2,6-Dimethoxypyrimidin-4-yl chloride 4-Chloro-2,6-dimethoxypyrimidine 6-Chloro-2,4-dimethoxypyrimidine 6320-15-6 NSC 31796 (CAS 6320-15-6)
- butyl 1-chloroethyl carbonate (CAS 91508-03-1)
- (E)-3-o-Tolyl-acryloyl chloride (e)-3-o-tolylacryloyl chloride 3-o-tolyl-acryloyl chloride 83612-52-6 (CAS 83612-52-6)
- 5-(o-Tolyl)-1,3,4-thiadiazol-2-amine (CAS 59565-54-7)
- 2-(3-methoxycarbonyl-1-bicyclo[1.1.1]pentanyl)acetic acid (CAS 1113001-63-0)
- 5-Fluoro-4-methyl-2-(methylthio)pyrimidine (CAS 6090-42-2)
- 4-(Benzofuran-2-yl)-1-methoxyisoquinolin-5-ol (CAS 656234-09-2)
- N-Boc-4-piperidyl p-Methylbenzenesulfonate (CAS 118811-07-7)
- 6-[4-(Trifluoromethoxy)phenyl]pyrazine-2-carboxylic Acid (CAS 1258269-13-4)
- 6-Phenyl-2-(pyridin-2-yl)-1,3,6,2-dioxazaborocane (CAS 882521-96-2)
- 5-Methyl-3-(3-(trifluoromethyl)phenyl)-1H-pyrazole (CAS 521267-21-0)
- 88-11-9 Diethylthiocarbamoyl chloride Carbamothioic chloride, diethyl- EINECS 201-799-0 (CAS 88-11-9)
- Semaglutide Impurity 185 (CAS CATO-C4X-2226185)
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