Similar to IUCLID

ChEBI

Chemical Abstracts Service

ChemSpider

DrugBank

European Community number

GenBank

Gmelin database

International Chemical Identifier

Open Babel

PubChem

Simplified Molecular Input Line Entry System

Registry of Toxic Effects of Chemical Substances

Colour Index International

CAS Registry Number

ChEMBL

Molecule editor

International Centre for Diffraction Data

Combinatorial chemistry

ZINC database

Protein Data Bank

Therapeutic Targets Database

Beilstein database