4-(5-(Trifluoromethyl)isoxazol-3-yl)thiophene-2-sulfonyl chloride CAS 1268334-85-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1268334-85-5 |
| Molecular Formula | C8H3ClF3NO3S2 |
| Molecular Weight | 317.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(5-(Trifluoromethyl)isoxazol-3-yl)thiophene-2-sulfonyl chloride (CAS 1268334-85-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H3ClF3NO3S2. Molecular weight: 317.69 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H3ClF3NO3S2 |
| Molecular Weight | 317.69 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Trifluoromethyl Standards
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Recommended Standards
- 3-Chloro-N-((6-methoxypyridin-3-yl)methyl)-5-(trifluoromethyl)pyridin-2-amine (CAS 1197904-83-8)
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- (3AR,4s,9bs)-6-chloro-9-(trifluoromethyl)-3a,4,5,9b-tetrahydro-3h-cyclopenta[c]quinoline-4-carboxylic acid (CAS 956444-95-4)
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- 1,3-Bis(4-methylpyridin-2-yl)urea (CAS 92023-86-4)
- Acetyl Hexapeptide-39 (CAS 1382088-38-1)
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