Ribavirin EP Impurity D CAS 3641-08-5

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.3641-08-5
Molecular FormulaC3H4N4O
Molecular Weight112.09 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ribavirin EP Impurity D CAS 3641-08-5 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.

As a process- or degradation-related impurity, Ribavirin EP Impurity D (CAS 3641-08-5, C3H4N4O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Owing to an amide group, a hydroxyl group, an ether linkage, Ribavirin EP Impurity D is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 112.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaC3H4N4O
Molecular Weight112.09 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1958
Nitrogen Atoms4

Related Ribavirin Standards

Recommended Standards

Why CATO?