Iohexol EP Impurity Q CAS CATO-C4X-166413
| CAS No. | CATO-C4X-166413 |
| Molecular Formula | C21H28I3N3O10 |
| Molecular Weight | 863.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Iohexol EP Impurity Q (CAS CATO-C4X-166413), a pharmacopoeial impurity reference standard (molecular formula C21H28I3N3O10, MW 863.17 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution, Iohexol EP Impurity Q is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 863.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 Iohexol EP Impurity Q 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 | C21H28I3N3O10 |
| Molecular Weight | 863.17 g/mol |
| Purity | White solid |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
Related Iohexol Standards
- Iohexol EP Impurity N (CAS CATO-C4X-166410)
- Iohexol EP Impurity O (CAS CATO-C4X-166411)
- Iohexol EP Impurity P (CAS CATO-C4X-166412)
- Iohexol EP Impurity B (CAS 2732209-64-0)
- Iohexol EP Impurity C (CAS CATO-C4X-16643)
- Iohexol EP Impurity D (CAS 157739-09-8)
- Iohexol EP Impurity E (CAS 2727061-52-9)
- Iohexol Impurity 50 (CAS CATO-C4X-166450)
Recommended Standards
- tert-butyl (4-((3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)propyl)(tert-butoxycarbonyl)amino)butyl)(3-palmitamidopropyl)carbamate (CAS 1263046-88-3)
- Magnesium Ionophore IV (CAS 135734-39-3)
- Ubidecarenone EP Impurity E (CAS 2382-48-1)
- 1-(3-(N-(2,3-Dihydroxypropyl)acetamido)-5-((2,3-dihydroxypropyl)carbamoyl)-2,4,6-triiodobenzamido)-3-hydroxypropan-2-yl acetate (Iodixanol Impurity) (CAS 2730989-02-1)
- Josamycin EP Impurity E (Platenomycin A1) (CAS 40615-47-2)
- Fasudil Impurity 44 (CAS 84468-22-4)
- Palbociclib Impurity 46 (CAS 1244949-62-9)
- 3-Chloro-5-(trichloromethyl)pyridine (CAS 85148-27-2)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3,6-dichlorobenzoic acid (CAS 1691057-24-5)
- 2-Isopropyl-4-methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2750602-21-0)
- 2-Butenedioic acid, 2-[[4-(methoxycarbonyl)-3-thienyl]amino]-, 1,4-diethyl ester (CAS 2007931-02-2)
- Methyl 2-bromo-4-chloro-5-methoxybenzoate (CAS 1138220-77-5)
- n-Ethyl-1,2,3,4-tetrahydroisoquinoline-3-carboxamide (CAS 742668-24-2)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
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