Iohexol Impurity 32 CAS CATO-C4X-166432
| CAS No. | CATO-C4X-166432 |
| Molecular Formula | C13H8Cl3I2NO5 |
| Molecular Weight | 618.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Iohexol Impurity 32 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Iohexol Impurity 32 (CAS CATO-C4X-166432), a pharmacopoeial impurity reference standard (molecular formula C13H8Cl3I2NO5, MW 618.37 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C13H8Cl3I2NO5, Iohexol Impurity 32 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 618.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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.
Physical & Chemical Properties
| Molecular Formula | C13H8Cl3I2NO5 |
| Molecular Weight | 618.37 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 | Cl/I-containing |
| Nitrogen Atoms | 1 |
Related Iohexol Standards
- Iohexol Impurity 33 (CAS CATO-C4X-166433)
- Iohexol Impurity G (2,4-diiodo Isomer) (CAS CATO-C4X-166422)
- Iohexol Impurity 52 (CAS CATO-C4X-166452)
- Iohexol EP Impurity L (CAS 37441-29-5)
- Iohexol EP Impurity I (CAS 196309-19-0)
- Iohexol EP Impurity M (CAS CATO-C4X-166421)
- Iohexol EP Impurity H (4,6-diiodo Isomer) (Mixture of Diastereomers) (CAS 1651211-79-8)
- Iohexol EP Impurity F (CAS 1215856-35-1)
Recommended Standards
- 4,4′,4′′,4′′′-tetraaza-29<I>H</I>,31<I>H</I>-copper(II) phthalocyanine (CAS 15275-52-2)
- Lifitegrast Impurity 101 (CAS CATO-C4X-2409101)
- (1R)-3,3′-Bis(2,3,4,5,6-pentafluorophenyl)[1,1′-binaphthalene]-2,2′-diol (CAS 940868-89-3)
- 2-(9,9-Bis(6-bromohexyl)-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1030020-61-1)
- Decitabine Impurity 3 (CAS CATO-C4X-11373)
- Pregabalin Impurity 115 (CAS CATO-C4X-1312115)
- Adapalene Impurity 5 (CAS 106685-41-0)
- 7-methoxy-3,4-dihydroisoquinoline (CAS 184913-19-7)
- 4-Hydrazinyl-N,N-dimethylaniline (CAS 41002-34-0)
- 3-(Chloromethyl)furan (CAS 14497-29-1)
- 3-Iodo-1H-indazol-4-ol (CAS 1246307-74-3)
- 5-Ethyl-3-(3-nitrophenyl)-1,2,4-oxadiazole (CAS 10364-69-9)
- Quercetin-7-O-glucuronide (CAS 38934-20-2)
- Tirzepatide Impurity 45 (CAS CATO-C4X-324045)
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