https://www.sigmaaldrich.com/US/en/substance/pyridostigminebromide26112101268
Pyridostigmine Bromide. Synonyms: Pyridostigmine bromide, 3-(Dimethylaminocarbonyloxy)-1-methylpyridinium bromide. CAS 101-26-8. Molecular Weight 261.12....
pyridostigmine bromidemethylpyridinium