Identifier Cleaner

Convert between SMILES, InChI, InChIKey, and compound names. Supports PubChem name resolution as a fallback when the input is a common drug name.

Example: aspirin → CC(=O)Oc1ccccc1C(=O)O

Free Research Context Use this tool freely, then open the research home or demo workspace when you want project context.

Research home Demo workspace

Canonical SMILES O=C(On1nnc2ccccc21)c1ccc2[nH]ccc2c1

InChI InChI=1S/C15H10N4O2/c20-15(11-5-6-12-10(9-11)7-8-16-12)21-19-14-4-2-1-3-13(14)17-18-19/h1-9,16H

InChIKey YPFWNRLSYPAVJB-UHFFFAOYSA-N

Molecular Weight

278.27