3.2 Licensing

Babel requires a valid OpenEye license for the product OEChem and only OEChem licensees are entitled to use Babel. (One feature, generating 2D coordinates, invoked by the option -add2d, requires an Ogham (oedepict) license, but this is not required for all other operations.) The license file should be defined by environment variable OE_LICENSE. To request an evaluation license use OpenEye's online request form. If already a licensee, contact support@eyesopen.com or your local system administrator for a license file. To purchase OEChem and Babel, or other OpenEye software, contact business@eyesopen.com.