2-Chloro-4-(3-methylthiophenyl)benzoic acid CAS 1261944-08-4
| CAS No. | 1261944-08-4 |
| Molecular Formula | C14H11ClO2S |
| Molecular Weight | 278.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 278.75 g/mol gives 2-Chloro-4-(3-methylthiophenyl)benzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Chloro-4-(3-methylthiophenyl)benzoic acid (CAS 1261944-08-4), molecular formula C14H11ClO2S and molecular weight 278.75 g/mol, is a CATO reference standard with documented purity and traceability.
2-Chloro-4-(3-methylthiophenyl)benzoic acid (C14H11ClO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; 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).
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), 2-Chloro-4-(3-methylthiophenyl)benzoic 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 | C14H11ClO2S |
| Molecular Weight | 278.75 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 5-Chloro-2-(2-methylphenyl)sulfanylbenzoic acid (CAS 93288-98-3)
- 2-Chloro-N-(1-(3-cyanopyridin-2-yl)piperidin-4-yl)acetamide (CAS 1065484-49-2)
- 4-Chloro-n-[2-(1h-pyrazol-1-yl)ethyl]-1,3-benzothiazol-2-amine (CAS 1177299-27-2)
- 7-Chloro-N-(furan-2-ylmethyl)-4-methylbenzo[d]thiazol-2(3h)-imine (CAS 1177309-38-4)
- 6-Chloro-N-(furan-2-ylmethyl)-4-methylbenzo[d]thiazol-2(3h)-imine (CAS 1177346-53-0)
- 2-Chloro-7-cyclopentyl-N-methyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide (CAS 1211444-14-2)
- 2-(((5-Chloro-1,2,3-thiadiazol-4-yl)methyl)(methyl)amino)-N-(2-methoxyethyl)acetamide (CAS 1271382-18-3)
- 2-(4-Chloro-6-methyl-pyrimidin-2-ylsulfanyl)-1-phenyl-ethanone (CAS 482631-59-4)
Recommended Standards
- 3-(4-Ethoxyphenoxy)propane-1-sulfonyl chloride (CAS 1018271-73-2)
- 2-[(4-chlorophenyl)sulfanyl]-4-methylbenzoic acid (CAS 1274871-15-6)
- Darolutamide Impurity 29 (CAS CATO-C4X-310629)
- 4-(2-Methoxyphenoxy)butane-1-sulfonyl chloride (CAS 1339375-35-7)
- Li In Water (CAS CATO-CCRM106094)
- 2-((2,4-Dichlorophenyl)amino)-4-methylthiazole-5-carboxylic acid (CAS 928003-09-2)
- Cyclopropyl(o-tolyl)methanol (CAS 400613-95-8)
- 3-(5-Amino-3-methyl-2,6-dioxo-3,6-dihydropyrimidin-1(2h)-yl)propanamide (CAS 1342550-74-6)
- Methyl (((9H-fluoren-9-yl)methoxy)carbonyl)-L-leucinate (CAS 139551-80-7)
- Isbogrel (CAS 89667-40-3)
- 1-((3,5-Dimethyl-1H-pyrazol-4-yl)sulfonyl)piperidin-4-amine (CAS 1239968-05-8)
- 7-methyl-1-benzothiophene-2-sulfonyl chloride (CAS 1158208-53-7)
- (1,3-dimethyl-1H-pyrazol-4-yl)boronic acid (CAS 1146616-03-6)
- (His32,Leu34)-Neuropeptide Y (32-36) (CAS 168916-68-5)
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