Iopamidol Impurity 41 CAS CATO-C4X-145041
| CAS No. | CATO-C4X-145041 |
| Molecular Formula | C10H4Cl2I3NO4 |
| Molecular Weight | 653.76 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Iopamidol Impurity 41 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 Iopamidol Impurity 41 (CAS CATO-C4X-145041), a pharmacopoeial impurity reference standard (molecular formula C10H4Cl2I3NO4, MW 653.76 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/iodine substitution, Iopamidol Impurity 41 is typically off-white to pale yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 653.76 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C10H4Cl2I3NO4 |
| Molecular Weight | 653.76 g/mol |
| Purity | ≥95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 1 |
Related Iopamidol Standards
- Iopamidol Impurity 40 (CAS CATO-C4X-145040)
- Iopamidol EP Impurity K (CAS 1788899-70-6)
- Iopamidol Impurity 48 (CAS CATO-C4X-145048)
- Iopamidol Impurity 39 (CAS CATO-C4X-145039)
- Iopamidol Impurity 32 (CAS CATO-C4X-145032)
- Iopamidol Impurity 38 (CAS CATO-C4X-145038)
- Iopamidol Impurity 55 (CAS CATO-C4X-145055)
- Iopamidol Impurity 58 (CAS CATO-C4X-145058)
Recommended Standards
- DBCO-Sulfo-Link-biotin (CAS 1363444-70-5)
- [S(R)]-N-[(1S)-2-(Diphenylphosphino)-1-[2-(diphenylphosphino)-4,5-dimethoxyphenyl]ethyl]-2-methyl-2-propanesulfinamide (CAS 2565792-27-8)
- (9H-fluoren-9-yl)methyl (S)-(1-(methoxy(methyl)amino)-1,5-dioxo-5-(tritylamino)pentan-2-yl)carbamate (CAS 474123-46-1)
- Fmoc-Trp(Boc)-Ser(Psi(Me,Me)pro)-OH (CAS 908601-15-0)
- Lovastatin Impurity 39 (CAS CATO-C4X-168439)
- Dabigatran Impurity 34 (CAS 58906-62-0)
- Rupatadine impurity 32 (CAS CATO-C4X-102732)
- 2-Propenamide, polymer with 1-ethenyl-2-pyrrolidinone (CAS 26124-23-2)
- Naphtho[8,1,2-abc]coronene (CAS 6596-38-9)
- N-(4-methoxy-3-(1-methyl-1H-pyrazol-5-yl)phenyl)acetamide (CAS 839714-89-5)
- 2-(Butylthio)pyrimidin-4(1H)-one (CAS 54774-97-9)
- 2-Bromo-4,5-dimethylthiazole (CAS 29947-24-8)
- (E)-1,1,1-Trifluoro-4-(thiophen-2-yl)but-3-en-2-one (CAS 209967-65-7)
- Semaglutide (CAS 910463-68-2（free base）)
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