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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Pyridostigmine and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Pyridostigmine impurities, metabolites, nitrosamine derivatives (N-NO compounds), and stable isotope-labeled products. These reference standards play a critical role in pharmaceutical R&D, supporting activities such as product formulation, ANDA and DMF submissions, quality assurance, analytical method development, and stability assessments.
All Pyridostigmine-related substances undergo comprehensive characterization and are delivered with complete Certificates of Analysis and supporting analytical documentation to ensure regulatory adherence. Upon request, we can offer EP/USP traceable standards. Our products are routinely re-evaluated to maintain consistent quality and performance.

Pyridostigmine Bromide
CAT No: CL-PDGM-01 CAS No: 101-26-8 Mol Wt: 181.2 : 79.9 Mol F: C9H13N2O2 : Br Inv Status: Custom Synthesis
Chemical Name: 3-[(Dimethylcarbamoyl)oxy]-1-methylpyridinium bromide dihydrogen phosphate
Pyridostigmine EP Impurity A
CAT No: CL-PDGM-02 CAS No: 51581-32-9 Mol Wt: 166.2 Mol F: C8H10N2O2 Inv Status: Custom Synthesis
Chemical Name: Pyridin-3-yl dimethylcarbamate
Pyridostigmine EP Impurity B
CAT No: CL-PDGM-03 CAS No: 31034-86-3 Mol Wt: 110.1 : 79.9 Mol F: C6H8NO : Br Inv Status: Custom Synthesis
Chemical Name: 3-Hydroxy-1-methylpyridinium
Pyridostigmine Ethyl-methyl Impurity
CAT No: CL-PDGM-04 CAS No: NA Mol Wt: 195.2 : 79.9 Mol F: C10H15N2O2 : Br Inv Status: Custom Synthesis
Chemical Name: 3-((Ethyl(methyl)carbamoyl)oxy)-1-methylpyridin-1-ium bromide
Pyridostigmine Chloro Impurity
CAT No: CL-PDGM-05 CAS No: NA Mol Wt: 215.7 : 79.9 Mol F: C9H12ClN2O2 : Br Inv Status: Custom Synthesis
Chemical Name: 3-Chloro-5-((dimethylcarbamoyl)oxy)-1-methylpyridin-1-ium bromide
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