Why does the Concord Web Service node reject some of my SLN input?
Concord (the underlying tool, not the web service itself) requires that input SLNs explicitly include all hydrogens. For example, methane must be expressed in SLN notation as “CH4” and not as “C”, when submitting to Concord for processing. The dbtranslate nodes offer options to assist with preparing SLNs in this way.