Calculator Plugins Licensing

Who is a user of the Calculator Plugins?

The Calculators Plugins have a user-based licensing and pricing system. Users are those who either perform physico-chemical calculations with the Calculators Plugins or use the calculated properties for any purposes.

Free calculations

The following calculations are free, so they don't require any license in any of the Chemaxon products where they are available:

• Elemental Analysis calculations (e.g. molecular mass)
• 2D (Topological) Polar Surface Area calculation

NOTE: Only the 2D (Topological) Polar Surface Area calculation is free in the Geometry Group.

Licensed calculations

The 7 available licenses cover the following calculations. Once purchased, they allow the usage of the corresponding calculations in any of the Chemaxon products where they are available:

• Protonation: pK_a, Major Microspecies and Isoelectric Point calculations
• Partitioning: logP, logD and HLB calculations
• Solubility: Aqueous Solubility prediction
• NMR: ¹³C and ¹H NMR prediction
• Isomers: Tautomer, Stereoisomer and Resonance generation
• Structural Calculations: Charge, Conformation and Geometry Groups; Hückel, Refractivity, Hydrogen Bond Donor/Acceptor (HBDA) and Structural Frameworks calculations
• ADMET: hERG prediction

NOTE: The Structural Calculations license covers a wide selection of structural calculations grouped together from our earlier set of calculations. Individual calculations/groups can't be purchased separately.

The Charge Group contains the Charge Distribution, the Polarizability and the Orbital Electronegativity calculations.

The Conformation Group contains the Conformers, the Molecular Dynamics and the Flexible 3D Alignment calculations.

The Geometry Group contains the Topology Analysis, Geometry, 2D (Topological) Surface Area and the 3D Molecular Surface Area calculations.

NOTE: Using generated tautomers for search purposes (JChem tautomer search) does not require an Isomers license. This use-case is covered by the JChem Base license.

Old Calculator Plugins licenses

Since 1st July 2015 the old Calculations Pack and All Plugin licenses are not available for purchase. Our users who have Calculations Pack licenses and would like to renew them can choose any 3 of the licenses above. Our users who have the All Plugin licenses and would like to renew them get all the licenses above.

New licensing of the Calculator Plugins in Marvin

Since v. 21.1 property calculations do not require the corresponding Calculator Plugins licenses in MarvinSketch, only the MarvinBeans license. Please note that this is only true for MarvinSketch and does not include batch mode calculations (cxcalc) or calculations in other Chemaxon softwares (e.g. JChem, JC4O).

See the licensing page of MarvinSketch here for more information.