Iohexol impurities and related standards
4 reference standards related to Iohexol held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.
CAS numbers are listed for 4 of 4; 2 entries carry a structure drawing.
| Compound | CAS No. | Catalogue No. | Formula | MW |
|---|---|---|---|---|
| Iohexol EP Impurity D (Mixture of Diastereomers) | 157739-09-8 | RS-I037002 | C22H32I3N3O11 | 895.2 |
| Iohexol EP Impurity I | 196309-19-0 | RS-I037004 | C17H23I2N3O8 | 651.2 |
| Iohexol Impurity 24 | 105737-94-8 | RS-I037001 | C18H22I3N3O8 | 789.1 |
| Iohexol EP Impurity H | 1651211-79-8 | RS-I037003 | C19H27I2N3O9 | 695.25 |
Structures
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Iohexol EP Impurity D (Mixture of Diastereomers)
COA per lot -
Iohexol EP Impurity I
COA per lot -
Iohexol Impurity 24
COA per lot -
Iohexol EP Impurity H
COA per lot
Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to [email protected].

