I have registered a batch of compound. I realize now that it was a hydrochloride salt, so how do I go back to edit the molecule batch to append salt information?
You need to have salt information at the time of batch registration. You can not edit the salt fields once the batch is registered. You can, however, delete the erroneous batch, and register this batch again, this time including all necessary salt information. The batch name sequence will not be affected by this, i.e. there will be no gaps in the batch names.
If you can not delete the batch because there is bio-assay data associated, or it is the only batch, contact CDD support for additional help. Please include the vault name, compound ID, and batch ID, as well as new salt information and stoichiometry.
See this article on how to format salt fields for compound registration.