3-(tert-Butyl)-5-(chlorosulfonyl)benzoic acid CAS 1008138-43-9
| CAS No. | 1008138-43-9 |
| Molecular Formula | C11H13ClO4S |
| Molecular Weight | 276.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-(tert-Butyl)-5-(chlorosulfonyl)benzoic 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.
3-(tert-Butyl)-5-(chlorosulfonyl)benzoic acid (CAS 1008138-43-9), molecular formula C11H13ClO4S and molecular weight 276.74 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H13ClO4S, 3-(tert-Butyl)-5-(chlorosulfonyl)benzoic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 276.74 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C11H13ClO4S |
| Molecular Weight | 276.74 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.) | 1988 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Recommended Standards
- 7-Chloro-N-(o-tolyl)thiazolo[5,4-d]pyrimidin-2-amine (CAS 1000709-51-2)
- 1-Chloro-4-(4-fluorobenzyl)-5,6,7,8-tetrahydrophthalazine (CAS 1057682-44-6)
- rac Carprofen-d3 (CAS 1173019-42-5)
- 1-(5-Chloro-2-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidine-4-thiol (CAS 1082367-17-6)
- 2-Ethyl-2-methoxyhexan-1-amine (CAS 326487-92-7)
- (1R,2S)-cyclohex-4-ene-1,2-diol (CAS 406682-04-0)
- (S)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(3,4-dichlorobenzyl)propanoic acid (CAS 1260605-38-6)
- 1-Chloro-3-(2-chloro-4-fluorophenyl)propan-2-one (CAS 128426-46-0)
- 2-Chloro-5-iodopyridine-3,4-diamine (CAS 1363380-53-3)
- Om-189 (CAS 55381-18-5)
- 1-Aminobut-3-yn-2-ol (CAS 676503-25-6)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-N-((dimethylamino)methylene)-1H-pyrrole-2-carboxamide (CAS 338406-86-3)
- Ethyl glycylglycinate (CAS 627-74-7)
- Semaglutide impurity 49 (CAS CATO-C4X-222649)
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