CAS Number: 51581-32-9
Chemical Name: Pyridostigmine - Impurity A
Molecular Formula: C8H10N2O2
Molecular Weight: 166.18

CAS Number: 101-26-8
Chemical Name: Pyridostigmine Bromide
Molecular Formula: C9H13BrN2O2
Molecular Weight: 261.12

CAS Number: 31034-86-3
Chemical Name: 3-Hydroxy-1-methylpyridinium Bromide
Molecular Formula: C6H8BrNO
Molecular Weight: 190.04