4-(chlorosulfonyl)phenyl 4-methylbenzenesulfonate CAS 121347-21-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 121347-21-5 |
| Molecular Formula | C13H11ClO5S2 |
| Molecular Weight | 346.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(chlorosulfonyl)phenyl 4-methylbenzenesulfonate (CAS 121347-21-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C13H11ClO5S2. Molecular weight: 346.81 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C13H11ClO5S2 |
| Molecular Weight | 346.81 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related chlorosulfonyl Standards
- Benzyl 4-(2-(chlorosulfonyl)ethyl)piperazine-1-carboxylate (CAS 1196157-58-0)
- Methyl 3-(chlorosulfonyl)-4-(isopropylsulfonyl)thiophene-2-carboxylate (CAS 423768-47-2)
- 3-(Chlorosulfonyl)-4-iodobenzoic acid (CAS 402934-49-0)
- Ethyl 3-(chlorosulfonyl)-4-(p-tolyl)thiophene-2-carboxylate (CAS 1291486-89-9)
- Benzyl 1-((chlorosulfonyl)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate (CAS 2138392-11-5)
- Ethyl 4-(chlorosulfonyl)-2,5-dimethyl-1-phenyl-1H-pyrrole-3-carboxylate (CAS 306936-28-7)
- Benzyl (3-(chlorosulfonyl)-5-methylpyridin-2-yl)carbamate (CAS 2680660-26-6)
- 2-(3-(Chlorosulfonyl)benzamido)benzoic acid (CAS 183871-39-8)
Recommended Standards
- 2-(2-Chloroacetamido)-N-[2-(4-methoxyphenyl)ethyl]benzamide (CAS 117507-51-4)
- tert-Butyl 4-chloro-2-(pyridin-4-yl)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate (CAS 1266619-75-3)
- [(2-{[2-(4-Chlorophenyl)ethyl]amino}-2-oxoethyl)(phenyl)amino]acetic acid (CAS 1142205-17-1)
- (5-Methoxy-2-(trifluoromethyl)pyridin-4-yl)boronic acid (CAS 2225176-66-7)
- 3-(3,5-Dimethoxyphenyl)-4-nitro-1H-pyrazole (CAS 1707374-97-7)
- 1-tert-butyl-3-fluoropyrrolidine-3-carboxylic acid hydrochloride (CAS 1803584-91-9)
- 1-(3,4-Dichlorophenyl)-2-(pyridin-3-yl)ethan-1-amine (CAS 1281508-09-5)
- Testosterone Impurity 49 (CAS CATO-C4X-243249)
- Cefprozil Impurity 63 (CAS CATO-C4X-149263)
- Semaglutide Impurity 10 (CAS CATO-C4X-222610)
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 13829788188 / jacky.chen@cato-chem.com