ChemDraw19 Substitution Count written improperly to .mol files

Howard Feldman

• May 31, 2022 17:02

When I do a drawing in ChemDraw 19 with substitution count of either 'exact' or 'up to' and then a number from 0-4, then save as .mol file, it gets written as a M  SUB record (as I'd expect) but the values are always written out as '6' which is of course wrong (6 means 6 or more substitutions).

This can be clearly seen by simply reading the mol file back into chemdraw and everything becomes 'x6'.  I understand the warning says saving as .mol file may lose some data, but there is a direct correlation here between, for example 'Exact: 2' should lead to a '2' not a '6' in the M  SUB line.

Please confirm that this is a bug, and can be fixed?

Thanks

Howard

0

• Official comment

  

  Juan Ortega

  • May 31, 2022 19:46

  Hi,

  Please proceed to our support page and submit a ticket with a sample file, the expected behavior and the actual results you receive after saving the files.

  This way we can determine if the behavior occurs only in version 19, or if we need to submit a ticket to our development team for review.

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