Compound Q&A

What is Benidipine Impurity 4 (CAS: 21829-25-4)?

Answer

Benidipine Impurity 4 (Nifedipine)
Benidipine Impurity 4, also known as Nifedipine (CAS 21829-25-4), is a chemical compound commonly identified as an impurity during the synthesis or purification of Benidipine. It has a molecular formula of C17H18Cl2N2O4 and is typically a white crystalline solid with low solubility in water. This compound is structurally related to calcium channel blockers and may arise from incomplete reactions or degradation processes in pharmaceutical manufacturing.

About

CAS No 21829-25-4
English Name Benidipine Impurity 4 (Nifedipine)
Molecular Formula C17H18N2O6
Molecular Weight 346.33 g/mol
SMILES COC(=O)C1=C(C)NC(=C(C1c2ccccc2[N+](=O)[O-])C(=O)OC)C
InChIKey HYIMSNHJOBLJNT-UHFFFAOYSA-N
Last Updated: 2025-08-25 01:07

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