Iohexol CAS 66108-95-0
| CAS No. | 66108-95-0 |
| Molecular Formula | C19H26I3N3O9 |
| Molecular Weight | 821.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Iohexol (CAS 66108-95-0), a certified reference material (molecular formula C19H26I3N3O9, MW 821.14 g/mol) for analytical method development and quality control.
The molecular framework of Iohexol (C19H26I3N3O9) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H26I3N3O9 |
| Molecular Weight | 821.14 g/mol |
| Purity | >95% |
| 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 |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
Related Iohexol Standards
- Iohexol Impurity 30 (CAS CATO-C4X-166430)
- Iohexol impurity 42 (CAS CATO-C4X-166442)
- Iohexol impurity 45 (CAS CATO-C4X-166445)
- Iohexol-d3 (CAS 66108-95-0 (unlabeled))
- Iohexol-D5 (CAS 928623-33-0)
- Iohexol impurity 34 (CAS CATO-C4X-166434)
- Iohexol impurity 43 (CAS CATO-C4X-166443)
- Iohexol Impurity 26 (CAS CATO-C4X-166426)
Recommended Standards
- Tris(perfluoropentyl)amine (CAS 338-84-1)
- N2-(1,1,4,4-tetramethyldisilylazacyclopentanyl)-o6-benzyl-8-bromo-n9-[3’,5’-o-(1,1,3,3-tetrakis(isopropyl)-1,3-disiloxanediyl)-β-d-2’-deoxyribofuranosyl]guanine (CAS 328394-28-1)
- 4-(Methylthio)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-2-amine (CAS 7511-83-3)
- Iodixanol Impurity 16 (CAS CATO-C4X-166316)
- 1-Chloro-6-methyl-5-nitroisoquinoline (CAS 943606-84-6)
- Ethyl 2-(4-(3,3-dimethylureido)cyclohexyl)acetate (CAS 2410736-56-8)
- 2-Chloro-n-ethyl-n-(2-methylphenyl)acetamide (CAS 6933-00-2)
- Methyl 4-(hydroxymethyl)-2-methylbenzoate (CAS 530145-28-9)
- (8-Quinolinolato)lithium (CAS 25387-93-3)
- 2-Chloro-6-methylquinoxaline (CAS 55687-00-8)
- tert-Butyl (5-bromo-2-chloropyridin-4-yl)carbamate (CAS 1820683-84-8)
- 4273-98-7 6VU39ID7LU 2-(Phenylsulfonyl)aniline 2-Aminophenyl phenyl sulphone Benzenamine, 2-(phenylsulfonyl)- 2-Aminodiphenyl sulfone EINECS 224-271-1 o-Aminodiphenyl sulfone UNII-6VU39ID7LU (CAS 4273-98-7)
- 3-[(4-Fluorophenyl)methyl]-4-hydroxy-1-[(3-methoxyphenyl)methyl]-1,2-dihydropyridin-2-one (CAS 478247-86-8)
- Semaglutide Impurity 122 (CAS CATO-C4X-2226122)
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