Methyl 3-(tosyloxy)thiophene-2-carboxylate CAS 181226-89-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 181226-89-1 |
| Molecular Formula | C13H12O5S2 |
| Molecular Weight | 312.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 3-(tosyloxy)thiophene-2-carboxylate (CAS 181226-89-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H12O5S2. Molecular weight: 312.36 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C13H12O5S2 |
| Molecular Weight | 312.36 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2008 |
| Sulfur Atoms | 2 |
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Recommended Standards
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- (2R,3R,4R,5R)-5-(benzyloxymethyl)-3-[(4-methoxyphenyl)methoxy]tetrahydrofuran-2,4-diol (CAS 1583259-16-8)
- 1-(Tert-butyl) 2-methyl (2R,4R)-4-(methylamino)pyrrolidine-1,2-dicarboxylate (CAS 2165540-04-3)
- 8-Ethoxy-1,3-dimethyl-4H-cyclohepta[c]furan-4-one (CAS 202581-65-5)
- Semaglutide impurity 244(Fmoc-His(Fmoc)-Aib-OH) (CAS CATO-C4X-2226244)
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