3-Acetylbenzoyl chloride CAS 31076-85-4
| CAS No. | 31076-85-4 |
| Molecular Formula | C9H7ClO2 |
| Molecular Weight | 182.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Acetylbenzoyl chloride (CAS 31076-85-4), molecular formula C9H7ClO2 and molecular weight 182.60 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Acetylbenzoyl chloride (C9H7ClO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
As a certified reference material (CRM), 3-Acetylbenzoyl chloride 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 | C9H7ClO2 |
| Molecular Weight | 182.60 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
Related Acetylbenzoyl Standards
Recommended Standards
- 3-(2-Chlorophenyl)-3-oxopropanal (CAS 93182-18-4)
- 3-Chloro-5-methoxybenzofuran (CAS 77440-96-1)
- 2-Chlorocinnamic Acid (CAS 3752-25-8)
- 4,4-Difluorocyclohexanecarbonyl Chloride (CAS 376348-75-3)
- Methyl 2-(2-chlorobenzamido)-4-methyl-5-(m-tolylcarbamoyl)thiophene-3-carboxylate (CAS 335410-67-8)
- tert-Butyl 3-((3-(pyridin-3-yl)-1,2,4-oxadiazol-5-yl)methyl)azetidine-1-carboxylate (CAS 1702389-46-5)
- N-Benzoyl-L-norleucine (CAS 54430-46-5)
- 2-(Azetidin-3-yloxy)-N-(2,2,2-trifluoroethyl)acetamide (CAS 1342379-14-9)
- 6-(3,5-Difluorophenyl)-2-methylpyrimidin-4-ol (CAS 1690654-47-7)
- Methyl 3'-formyl-2'-hydroxy-[1,1'-biphenyl]-3-carboxylate (CAS 1258625-58-9)
- (S)-Ethyl 2,2-diethyloxazolidine-4-carboxylate (CAS 560132-26-5)
- tert-Butyl (1-(4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridin-3-yl)ethyl)carbamate (CAS 1351392-45-4)
- 1-(1-(Cyclopentylmethyl)-1H-pyrazol-4-yl)ethan-1-one (CAS 1344272-81-6)
- Acetyl tetrapeptide-3 (CAS 827306-88-7)
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