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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Dapsone and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Dapsone 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 Dapsone-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 Dapsone Impurity 1
CAT No: CL-DPN-NO-01 CAS No: NA Mol Wt: 523.58 Mol F: C24H21N5O5S2 Inv Status: Custom Synthesis
Chemical Name: N,N'-bis(4-((4-aminophenyl)sulfonyl)phenyl)nitrous hydrazide
N-Nitroso Dapsone Impurity 2
CAT No: CL-DPN-NO-02 CAS No: NA Mol Wt: 552.58 Mol F: C24H20N6O6S2 Inv Status: Custom Synthesis
Chemical Name: 4,4'-((1,2-dinitrosohydrazine-1,2-diyl)bis(4,1-phenylenesulfonyl))dianiline
N-Nitroso Dapsone Impurity 3
CAT No: CL-DPN-NO-03 CAS No: NA Mol Wt: 508.57 Mol F: C24H20N4O5S2 Inv Status: Custom Synthesis
Chemical Name: N,N-bis(4-((4-aminophenyl)sulfonyl)phenyl)nitrous amide
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