kazuya 

NCDK is C# implementation of the Chemistry Development Kit (CDK), which is an open-source library of algorithms for structural cheminformatics and bioinformatics.

Depiction module of NCDK

.NET binding of RDKit Release_2021_09_4. Supports Windows (x86 and x64) and Linux (x64).

OPSIN - Open Parser for Systematic IUPAC Nomenclature - for .NET Framework