|Source: Kishida Chemical|
Kishida specializes in med-chem building blocks, but seems to have a problem with their structure-drawing program (right)...where did all the hydrogens go? Don't think it's just on the website - the catalog goes 50/50 for abnormal heteroatom saturation.*
Readers, am I missing something (other than those "H" atoms)? Is this part of some common fragment representation, or is it just lazy drawing?
*For a good time, check cyclobutylhydrazine dihydrochloride (PK0-13441), which seems to be missing a record five (5) hydrogens! Can anyone top that?