He was a drama major, wasn't he? None of the science is his background, so I'm sure it is provided by contributors. If you can't draw a benzene ring in two pen strokes, then I doubt you know much about the chemistry or science beyond macro scale generalities.
It's a character.
Back in the day, (I hate that saying) there was a rumor that he did a dissertation on goulash and spent a couple of years on the chem. breakdown on the science on it. This was late 90's or early 00's.
The amount of stuff he has done and how it is/was presented shows that a lot of research went into every one. I don't think that it is only just a chr., but a part of himself also. I at least hope so