4-Chlorosulfonyl-2-trifluoromethyl-[2,3]-bithiophenyl-5-carboxylic acid methyl ester CAS 1431555-28-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1431555-28-0 |
| Molecular Formula | C11H6ClF3O4S3 |
| Molecular Weight | 390.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chlorosulfonyl-2-trifluoromethyl-[2,3]-bithiophenyl-5-carboxylic acid methyl ester (CAS 1431555-28-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H6ClF3O4S3. Molecular weight: 390.81 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H6ClF3O4S3 |
| Molecular Weight | 390.81 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 3 |
Related Chlorosulfonyl Standards
- Benzyl 4-(4-(chlorosulfonyl)phenyl)piperazine-1-carboxylate (CAS 125393-31-9)
- Benzyl 5-(chlorosulfonyl)-7-nitro-2,3-dihydro-1H-indole-1-carboxylate (CAS 1710628-73-1)
- 5-[[p-(Chlorosulfonyl)phenyl]azo]salicylic Acid Methyl Ester Acetate (CAS 34265-47-9)
- Methyl 3-(chlorosulfonyl)-4-phenyl-5-(trifluoromethyl)thiophene-2-carboxylate (CAS 306935-98-8)
- 3-Chlorosulfonyl-4-(2-hydroxy-phenyl)-5-trifluoro-methyl-thiophene-2-carboxylic acid methyl ester (CAS 1431555-15-5)
- Ethyl 4-(chlorosulfonyl)-2-methyl-1,5-diphenyl-1H-pyrrole-3-carboxylate (CAS 306936-29-8)
- 4-(3-(5-(Chlorosulfonyl)naphthalen-1-yl)ureido)benzoic acid (CAS 1032507-49-5)
- 2,4-bis(chlorosulfonyl)phenyl pivalate (CAS CATO-C4X-212340)
Recommended Standards
- Afatinib Impurity 61 (CAS CATO-C4X-100661)
- [(Z)-2-(Benzenesulfonyl)-2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]ethenyl]dimethylamine (CAS 338758-54-6)
- Afatinib Impurity 60 (CAS CATO-C4X-100660)
- Pioglitazone Bromo Impurity (CAS 669716-58-9)
- Methyl 3-amino-5-methyl-1H-pyrazole-4-carboxylate (CAS 109012-96-6)
- 2-Amino-N-cyclopropyl-3-methyl-N-(((S)-1-methylpiperidin-2-yl)methyl)butanamide (CAS 1354028-54-8)
- 5-Aminopentanimidamide (CAS 1502317-24-9)
- Tert-butyl 4-(2-oxoimidazolidin-1-yl)piperidine-1-carboxylate (CAS 902133-63-5)
- Trametinib impurity 04 (CAS 871700-25-3)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
Why CATO?
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