MOL to InChIKey Converter

Paste a MOL or SDF block and convert it into a standard InChIKey value.

File Format Explained

MOL is a structure file with atom and bond blocks. It can preserve drawn coordinates and editable molecular topology.

InChIKey is a fixed-length key generated from an InChI. It is designed for fast lookup, database matching, and duplicate detection across chemical collections.

Use MOL when you need an editable structure file. Use InChIKey when you need a compact identifier for search or matching.