Atracurium Impurity 21 CAS CATO-C4X-185021
| CAS No. | CATO-C4X-185021 |
| Molecular Formula | C29H42NO7 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Atracurium Impurity 21 (CAS CATO-C4X-185021), a pharmacopoeial impurity reference standard (molecular formula C29H42NO7I, MW 643.55 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C29H42NO7I, Atracurium Impurity 21 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 643.55 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Atracurium Impurity 21 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C29H42NO7 I |
| Molecular Weight | 643.55 g/mol |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related Atracurium Standards
- Atracurium Impurity U (CAS .)
- Atracurium Impurity 82 (CAS 1075726-70-3)
- Atracurium Impurity 25 (CAS 1075726-86-1)
- Atracurium Impurity 6 (CAS 1075726-91-8)
- Atracurium Impurity 43 (CAS 1075727-00-2)
- Atracurium Impurity 85 (CAS 1075727-02-4)
- Atracurium Impurity 40 (CAS 109717-73-9)
- Atracurium Impurity 7 (CAS 1100676-15-0)
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- 2-(2-Chlorobenzenesulfinyl)-N-(2,4-dichlorophenyl)acetamide (CAS 339107-87-8)
- D-Thr5-Tirzepatide (CAS CATO-CPTD788926)
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