Iobitridol Impurity 33 CAS CATO-C4X-317833

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-317833
Molecular FormulaC20H30IN3O9
Molecular Weight583.37 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Iobitridol Impurity 33 CAS CATO-C4X-317833 chemical structure

Description

The occurrence of Iobitridol Impurity 33 is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Iobitridol Impurity 33 (CAS CATO-C4X-317833) is a certified pharmaceutical impurity reference standard with the molecular formula C20H30IN3O9 and a molecular weight of 583.37 g/mol.

Based on its molecular formula C20H30IN3O9, Iobitridol Impurity 33 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 583.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 Iobitridol Impurity 33 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 FormulaC20H30IN3O9
Molecular Weight583.37 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity≥95%
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay 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 AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentI-containing
Nitrogen Atoms3

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