Tiotropium EP Impurity D CAS 136310-66-2
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 136310-66-2 |
| Molecular Formula | C18H19NO3S2 |
| Molecular Weight | 361.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tiotropium EP Impurity D (CAS 136310-66-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H19NO3S2. Molecular weight: 361.48 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H19NO3S2 |
| Molecular Weight | 361.48 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Tiotropium Standards
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Recommended Standards
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- Melphalan EP Impurity B (CAS 1270153-04-2)
- Caspofungin Impurity 6 Diacetate salt (CAS CATO-C4X-157550)
- tert-Butyl 2-carbamothioyl-4-fluoropyrrolidine-1-carboxylate (CAS 860344-40-7)
- 7-Chloro-3-(thiophen-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine (CAS 1710293-26-7)
- 3-Chloropyrazolo[1,5-a]pyrimidine-2-carbonyl chloride (CAS 1018141-81-5)
- 5-Amino-4-cyano-N,N,3-trimethylthiophene-2-carboxamide (CAS 438457-01-3)
- Semaglutide impurity 72 (CAS CATO-C4X-222672)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com