4-Chloro-3-(chlorosulfonyl)-5-methylbenzoic acid CAS 1423024-38-7
| CAS No. | 1423024-38-7 |
| Molecular Formula | C8H6Cl2O4S |
| Molecular Weight | 269.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Chloro-3-(chlorosulfonyl)-5-methylbenzoic acid.
4-Chloro-3-(chlorosulfonyl)-5-methylbenzoic acid (CAS 1423024-38-7), molecular formula C8H6Cl2O4S and molecular weight 269.10 g/mol, is a CATO reference standard with documented purity and traceability.
4-Chloro-3-(chlorosulfonyl)-5-methylbenzoic acid (C8H6Cl2O4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 4-Chloro-3-(chlorosulfonyl)-5-methylbenzoic 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.
Physical & Chemical Properties
| Molecular Formula | C8H6Cl2O4S |
| Molecular Weight | 269.10 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- Methyl 4-chloro-3-(chlorosulfonyl)benzoate (CAS 1000933-19-6)
- Methyl 5-chloro-2-(chlorosulfonyl)benzoate (CAS 1119454-19-1)
- Methyl 3-chloro-5-(chlorosulfonyl)benzoate (CAS 1155083-83-2)
- 3-Chloro-5-(chlorosulfonyl)-4-methylbenzoic acid (CAS 1341830-84-9)
- 5-Chloro-3-(chlorosulfonyl)-2-methylbenzoic acid (CAS 1423028-58-3)
- 3-chloro-5-(chlorosulfonyl)-2-methylbenzoic acid (CAS 1702890-75-2)
- 6-Chloro-2,3-dihydro-1,4-benzodioxine-5-sulfonyl chloride (CAS 1785272-64-1)
- (3-Chloro-5-fluorophenyl)(3-chlorophenyl)methanone (CAS 844884-96-4)
Recommended Standards
- 3',5'-Dichloro-3-fluoro-[1,1'-biphenyl]-4-carbaldehyde (CAS 1361871-90-0)
- 3',4'-Dichloro-2-fluoro-[1,1'-biphenyl]-4-carbaldehyde (CAS 1361720-12-8)
- 5-Bromo-N-methyl-N-(1-methyl-1H-1,2,3,4-tetrazol-5-yl)pyridin-2-amine (CAS 1428960-81-9)
- 5-Bromo-N-((5-methyl-1h-1,2,4-triazol-3-yl)methyl)pyrimidin-2-amine (CAS 1355521-68-4)
- 1-[(4-Chlorophenyl)methoxy]-6-nitro-2-phenyl-1H-1,3-benzodiazole (CAS 282523-57-3)
- 2-(Difluoromethyl)-3-iodo-4-methoxypyridine-6-acetonitrile (CAS 1805543-64-9)
- 8-Chloro-4-hydroxy-N-(3-methylpyridin-2-yl)quinoline-3-carboxamide (CAS 951959-06-1)
- 4-(Methoxymethyl)furan-3-carboxylic acid (CAS 88550-25-8)
- 8-Chloro-6,7-dihydro-5H-cyclopenta[d][1,2,4]triazolo[1,5-a]pyrimidine (CAS 117343-12-1)
- 2-Cyano-N-(3-methoxyphenyl)-3-(4-methoxyphenyl)propanamide (CAS 483359-53-1)
- 3-(Oxetan-3-yl)azetidine hydrochloride (CAS 2306269-05-4)
- 4-(Tributylstannyl)-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester (CAS 208465-07-0)
- 4-(3-Chloro-4-fluorobenzenesulfonamido)benzoic acid (CAS 612043-04-6)
- Semaglutide impurity 54 (CAS CATO-C4X-222654)
Why CATO?
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