Lamotrigine EP Impurity B and Lamotrigine EP Impurity C CAS 84689-20-3

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.84689-20-3
Molecular FormulaC9H7Cl2N5
Molecular Weight256.09 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Lamotrigine EP Impurity B and Lamotrigine EP Impurity C CAS 84689-20-3 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Lamotrigine EP Impurity B and Lamotrigine EP Impurity C.

As a process- or degradation-related impurity, Lamotrigine EP Impurity B and Lamotrigine EP Impurity C (CAS 84689-20-3, C9H7Cl2N5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Structurally, Lamotrigine EP Impurity B and Lamotrigine EP Impurity C (C9H7Cl2N5) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 256.09 g/mol, it falls into the medium-molecular-weight range. 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.

CATO manufactures Lamotrigine EP Impurity B and Lamotrigine EP Impurity C 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 FormulaC9H7Cl2N5
Molecular Weight256.09 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1981
Halogen ContentCl-containing
Nitrogen Atoms5

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