Carbidopa EP Impurity J CAS 43197-33-7

Purity >90%In StockPharmacopoeial Impurity Standards
CAS No.43197-33-7
Molecular FormulaC10H13BrN2O4
Molecular Weight305.13 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Carbidopa EP Impurity J CAS 43197-33-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 305.13 g/mol gives Carbidopa EP Impurity J distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Carbidopa EP Impurity J (CAS 43197-33-7) is a certified pharmaceutical impurity reference standard with the molecular formula C10H13BrN2O4 and a molecular weight of 305.13 g/mol.

Structurally, Carbidopa EP Impurity J (C10H13BrN2O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 305.13 g/mol, it falls into the moderately-high-molecular-weight range. 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.

CATO manufactures Carbidopa EP Impurity J 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 FormulaC10H13BrN2O4
Molecular Weight305.13 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity>90%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1969
Halogen ContentBr-containing
Nitrogen Atoms2

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