ACD/Labs Chemical Nomenclature Service

Thank you for your interest in the ACD/Labs chemical nomenclature service. Please take a moment to fill out this form, as doing so will greatly reduce the chance of ambiguity.

Note: fields marked by * are mandatory.

Part 1

Choose the following options for configurations of stereo centers.

Stereo configuration of the whole structure is:

Absolute
Relative
Racemic
Mixed (please specify on your structure the stereo relations between atom groups: some can be absolute, some relative, some racemic)
Ignore all configurations

Stereo configuration of double bonds:

As drawn
Ignore
Other (please provide text explanation either here or in the comments section)
Part 2

In regard to composition for multicomponent structures (i.e., number of each component in the compound), the composition is:

As drawn
Unknown
Defined in comments
Part 3

It is sometimes important to define the treatment of tautomeric structures, especially for CAS names. Tautomeric and mesomeric forms are:

As drawn
Not specified
Part 4

Preferred naming style

Some structures can be named according to pure organic rules and also according to biochemical nomenclature. In this case, I prefer:

Organic nomenclature
Biochemical nomenclature
Part 5

Please add any other comments you feel are needed to define specific details of the compound.

Part 6

Please attach your structure(s) as a file

We accept almost any file format: MDL molfiles, ChemDraw CHM and CDX, ISIS/Draw SKC, ISIS/Base DB, and ChemSketch SK2 files, as well as high quality graphical images.

Attach File *
Part 7

Personal Information

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Company *
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