Thiocolchicoside EP Impurity K CAS CATO-C4X-27703
| CAS No. | CATO-C4X-27703 |
| Molecular Formula | C26H31NO10S |
| Molecular Weight | 549.60 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Thiocolchicoside EP Impurity K (C26H31NO10S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Thiocolchicoside EP Impurity K (CAS CATO-C4X-27703), a pharmacopoeial impurity reference standard (molecular formula C26H31NO10S, MW 549.60 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Thiocolchicoside EP Impurity K under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C26H31NO10S |
| Molecular Weight | 549.60 g/mol |
| Purity | ≥95% |
| Storage | Store at room temperature, 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Thiocolchicoside Standards
- Thiocolchicoside EP Impurity E (CAS 219547-29-2)
- Thiocolchicoside (CAS 602-41-5)
- Thiocolchicoside EP Impurity L (CAS CATO-C4X-27707)
- Thiocolchicoside-d3 (CAS CATO-C4X-27706)
- Thiocolchicoside EP Impurity G (CAS 177991-81-0)
- Thiocolchicoside EP Impurity J (Thiocolchicoside Impurity D1SO) (Mixture of Diastereomers) (CAS 1359973-79-7)
- Thiocolchicoside EP Impurity H (10-Demethoxy Colchicoside) (CAS CATO-C4X-27704)
- Thiocolchicoside EP Impurity B (CAS 2730-71-4)
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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 18665070610 / Nicole.chen@cato-chem.com