Iohexol impurity 35 CAS CATO-C4X-166435
| CAS No. | CATO-C4X-166435 |
| Molecular Formula | 2*C16H20I3N3O7 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Iohexol impurity 35 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.
CATO supplies Iohexol impurity 35 (CAS CATO-C4X-166435), a pharmacopoeial impurity reference standard (molecular formula C16H20I3N3O7, MW 747.05 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 impurity 35 is typically off-white to pale yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 747.05 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.
Physical & Chemical Properties
| Molecular Formula | 2*C16H20I3N3O7 |
| Molecular Weight | 747.05 g/mol |
| Purity | 97%+ |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
Related Iohexol Standards
- Iohexol Impurity 31 (CAS 1096689-22-3)
- Iohexol EP Impurity F (CAS 1215856-35-1)
- Iohexol Impurity N9 (CAS 122731-58-2)
- Iohexol Impurity 13 (CAS 122731-74-2)
- Iohexol EP Impurity D (CAS 157739-09-8)
- Iohexol Impurity 51 (CAS 1651211-78-7)
- Iohexol EP Impurity H (4,6-diiodo Isomer) (Mixture of Diastereomers) (CAS 1651211-79-8)
- Iohexol EP Impurity I (CAS 196309-19-0)
Recommended Standards
- Dapoxetine Impurity 40 (CAS CATO-C4X-143940)
- Apremilast impurity 92 (CAS 6744-85-0)
- Pantoprazole Impurity 68 (CAS CATO-C4X-139968)
- Olprinone Impurity N1 (CAS 106730-70-5)
- Dexmedetomidine D3 (CAS CATO-C4X-123084)
- 1-(3-(4-Oxo-3,4-dihydroquinazolin-2-yl)propanoyl)piperidine-4-carboxamide (CAS 743451-55-0)
- 2-(6-chloro-3-pyridinyl)-2-(phenylsulfonyl)acetaldehyde O-methyloxime (CAS 478048-56-5)
- 2-(5-(Methoxymethyl)furan-2-yl)-2-oxoacetyl chloride (CAS 107747-90-0)
- 3-(Propan-2-ylidene)pyrrolidine-2,5-dione (CAS 13678-37-0)
- Peptide YY (13-36) (canine, mouse, porcine, rat) (CAS 86895-09-2)
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