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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Chlorhexidine and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Chlorhexidine 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 Chlorhexidine-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.

N-Nitroso Chlorhexidine Impurity E
CAT No: CL-CHDC-NO-01 CAS No: NA Mol Wt: 198.61 Mol F: C7H7ClN4O Inv Status: Custom Synthesis
Chemical Name: 1-(4-chlorophenyl)-1-nitrosoguanidine
N-Nitroso Chlorhexidine Impurity 1
CAT No: CL-CHDC-NO-02 CAS No: NA Mol Wt: 198.61 Mol F: C7H7ClN4O Inv Status: Custom Synthesis
Chemical Name: (E)-1-(4-chlorophenyl)-2-nitrosoguanidine
N-Nitroso Chlorhexidine Impurity F
CAT No: CL-CHDC-NO-03 CAS No: NA Mol Wt: 199.59 Mol F: C7H6ClN3O2 Inv Status: Custom Synthesis
Chemical Name: 1-(4-chlorophenyl)-1-nitrosourea
N-Nitroso Chlorhexidine Impurity L
CAT No: CL-CHDC-NO-04 CAS No: NA Mol Wt: 359.72 Mol F: C13H14ClN3O7 Inv Status: Custom Synthesis
Chemical Name: N-(4-chlorophenyl)-N-((5R,6S)-5-hydroxy-4-oxo-6-((1R,2R)-1,2,3-trihydroxypropyl)-5,6-dihydro-4H-1,3-oxazin-2-yl)nitrous amide
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