4-Acetyl-3-chlorobenzoic acid CAS 57542-72-0
| CAS No. | 57542-72-0 |
| Molecular Formula | C9H7ClO3 |
| Molecular Weight | 198.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Acetyl-3-chlorobenzoic acid 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.
CATO supplies 4-Acetyl-3-chlorobenzoic acid (CAS 57542-72-0), a certified reference material (molecular formula C9H7ClO3, MW 198.60 g/mol) for analytical method development and quality control.
Structurally, 4-Acetyl-3-chlorobenzoic acid (C9H7ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 198.60 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H7ClO3 |
| Molecular Weight | 198.60 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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.) | 1973 |
| Halogen Content | Cl-containing |
Related Acetyl Standards
- 2-Acetyl-5-chlorobenzoic acid (CAS 115382-34-8)
- 4-Acetyl-2-chlorobenzoic acid (CAS 115382-35-9)
- 3-Acetyl-5-chlorobenzoic acid (CAS 1393566-58-9)
- 2-Acetyl-4-chlorobenzoic acid (CAS 1664338-78-6)
- 3-Acetyl-4-chlorobenzoic acid (CAS 258273-35-7)
- 5-Butyl-2-chlorobenzoic acid (CAS 1237071-48-5)
- 4-Chlorobenzoic acid-α-<SUP>13</SUP>C (CAS 138534-66-4)
- 4-Chlorobenzoic acid-phenyl-<SUP>13</SUP>C<SUB>6</SUB> (CAS 1173019-28-7)
Recommended Standards
- 4-(Acetoxy)benzoyl chloride (CAS 27914-73-4)
- 4-Acetylphenyl chloroformate (CAS 54888-20-9)
- 4-(2-Chloroacetyl)benzoic acid (CAS 76597-65-4)
- 4-Oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carbonyl chloride (CAS 851585-15-4)
- 4-Chloro-1-(4-fluorophenoxymethyl)-1h-pyrazole-3-carboxylic acid (CAS 1004194-23-3)
- (E)-1-(3-(4-chlorophenyl)-3-oxoprop-1-en-1-yl)-3-methylpyridin-1-ium chloride (CAS 19518-30-0)
- 3-Methoxy-2-methyl-1-propanamine (CAS 26331-99-7)
- 5-Bromo-2-(4-fluorophenyl)-6-(methylsulfonamido)benzofuran-3-carboxylic acid (CAS 1333244-32-8)
- L-Tyrosine, N-[(1,1-dimethylethoxy)carbonyl]-2-iodo- (CAS 1391584-40-9)
- 3-(Chloromethyl)-5-phenyl-1h-pyrazole (CAS 755700-32-4)
- (S)-6-Methyl-4,7-diazaspiro[2.5]octane-5,8-dione (CAS 98735-78-5)
- [2-methyl-1-(pyrrolidin-1-ylcarbonyl)propyl]amine hydrochloride (CAS 54124-67-3)
- N-(4-Bromo-2-methylphenyl)-2-cyanoacetamide (CAS 1016825-04-9)
- D-Pro31-Tirzepatide (CAS CATO-CPTD788905)
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