Amiodarone Impurity 25 CAS CATO-C4X-142525
| CAS No. | CATO-C4X-142525 |
| Molecular Formula | C19H18O3 |
| Molecular Weight | 294.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Amiodarone Impurity 25 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.
CATO supplies Amiodarone Impurity 25 (CAS CATO-C4X-142525), a pharmacopoeial impurity reference standard (molecular formula C19H18O3, MW 294.34 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Amiodarone Impurity 25 (C19H18O3) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 294.34 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C19H18O3 |
| Molecular Weight | 294.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Amiodarone Standards
- Amiodarone Impurity 27 (CAS CATO-C4X-142527)
- Amiodarone EP Impurity E (CAS 52490-15-0)
- Amiodarone Impurity 13 (CAS 83790-87-8)
- Amiodarone Impurity 24 (CAS CATO-C4X-142524)
- Amiodarone Impurity 26 (CAS CATO-C4X-142526)
- Amiodarone Impurity 50 (CAS CATO-C4X-142550)
- Amiodarone Impurity 38 (CAS 138320-26-0)
- Amiodarone Impurity 39 (CAS 138320-27-1)
Recommended Standards
- 898758-32-2 Ethyl 6-(2,5-dimethoxyphenyl)-6-oxohexanoate DTXSID40645818 (CAS 898758-32-2)
- (±)-Shikonin (CAS 54952-43-1)
- 50764-85-7 BIS(4-METHOXYBENZYLIDENE)ACETONE (CAS 50764-85-7)
- Iomeprol Impurity 13 (CAS CATO-C4X-182013)
- Chlorpheniramine Impurity 19 (CAS CATO-C4X-118819)
- Tegoprazan Impurity 73 (CAS CATO-C4X-229773)
- Atrasentan Impurity 140 (CAS 1058349-19-1)
- 4-(azetidin-3-yloxy)pyridine dihydrochloride (CAS 1251922-58-3)
- 2-(3-Chloro-2-(phenylselanyl)allyl)furan (CAS 87728-70-9)
- Methyl 5-ethyl-3-phenyl-1,2-oxazole-4-carboxylate (CAS 929890-04-0)
- 2-(3,4-Dimethylphenyl)-2,2-difluoroacetic acid (CAS 1027514-15-3)
- Benzyl 4-amino-1-methyl-1H-imidazole-2-carboxylate hydrochloride (CAS 1623424-04-3)
- 5-Nitro-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (CAS 1565857-68-2)
- Peptide Impurity 82 (CAS 10491-78-8)
Why CATO?
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