Scientist I (B.S. chemist, research associate (?)): 35-50k
Principal scientist (Ph.D. chemist, 2-3 years experience): 65-85k
Manufacturing engineer (BS/MS, supervisory level): 85-110k
With the help of GlassDoor, I ginned up a little graphic (above). For the young among us, it might be worthwhile to consider a career change? That said, the life of said manufacturing engineer doesn't sound very fun:
Applies complete understanding of organic/process chemistry and bulk pharmaceutical batch operations. Provides process-engineering support and troubleshoots routine and non-routine process and process equipment problems as necessary to meet all production and customer commitments in support of manufacturing bulk pharmaceutical (API) chemicals. Independently manages project activities and works as part of a team while communicating effectively to support rapidly changing business needs. Directs activities of workers who operate and control such equipment as reactors, pumps, valves, tanks, boilers, compressors, pipelines, and centrifuges to effect the required chemical or physical change.
I guess that extra $25k might help a manufacturing engineer to enjoy life more, I suppose.