t

converts to traditional name. This option generates a common name if one is known for the structure. Otherwise, it generates a systematic name, but sometimes uses some traditionally accepted rules instead of the strict application of the IUPAC rules, when that generates a simpler name.

i

converts to IUPAC name (default).

common

generates the most popular common name of a structure. (It fails if none is known.)

common,all

generates all common names of a structure.

source

outputs the name present in the source data (no generation).

CAS#

Fetches the CAS Registry Number(s) of the structure, using a public internet webservice. In case the structure corresponds to several CAS Registry Numbers, they are all returned, separated by commas.

singleCAS#

Fetches the CAS Registry Number of the structure, using a public internet webservice. In case the structure corresponds to several CAS Registry Numbers, the lowest one (historically assigned earlier) is returned.

ascii

Use only ASCII characters to encode the name.

timeout=<N>

Use at most N seconds for the name to be computed. The default timeout is currently 20 seconds (which should normally be reached exceptionally, for very large structures). A value of 0 means no timeout.