Chempirical
Free JSON API for chemical compound and reaction data: 48,938 compounds with names, CAS, SMILES, InChI/InChIKey, molar mass, density, melting and boiling points, Antoine constants, azeotropes and GHS hazard data; 3,374 reactions with reagent scaling; search by name, CAS, formula or SMILES plus substructure and similarity search and structure SVGs. No key, no sign-up, CORS open. Built by Nitramine.
Features & Specifications
HTTPS Support
Yes
CORS Support
Yes
Authentication
No
Pricing Model
Free
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