Compound Q&A
What are the physical and chemical properties of Lamotrigine EP Impurity B and Lamotrigine EP Impurity C (CAS: 84689-20-3)?
Answer
Lamotrigine EP Impurity B and C are impurities found in the lamotrigine drug substance. They are white crystalline solids with a molecular weight of approximately 264.27 g/mol. Solubility in water is low, with a solubility of about 0.02 g/100 mL at 25°C. Both impurities are chemically inert and do not react with common reagents. They are stable under normal storage conditions and do not decompose under typical laboratory conditions.
About
CAS No
84689-20-3
English Name
Lamotrigine EP Impurity B and Lamotrigine EP Impurity C
Molecular Formula
C9H7Cl2N5
Molecular Weight
256.09 g/mol
SMILES
NC(=N)NN=C(c1cccc(c1Cl)Cl)C#N
InChIKey
MLWONQDCGJOILV-UHFFFAOYSA-N
Last Updated: 2025-10-23 07:31
