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Dapsone Related Compounds & Impurities

Dapsone is a sulfone antibiotic and anti-inflammatory that inhibits dihydropteroate synthase in bacteria and has immunomodulatory properties, used for multidrug leprosy therapy, dermatitis herpetiformis and PCP prophylaxis.

Simson Pharma Limited along with its subsidiary offices Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) is a trusted manufacturer and supplier of high-quality pharmaceutical reference standards, offering a comprehensive portfolio of Dapsone reference standards, pharmacopeial and non-pharmacopeial Dapsone impurities, related compounds, related substances, metabolites, stable isotope-labelled compounds, deuterium labelled compounds and nitrosamine (N-NO) reference standards.

These materials support pharmaceutical research and development, product development, ANDA and DMF submissions, quality control (QC), analytical method development and validation, stability studies, impurity identification, and genotoxic impurity assessment.

Our Dapsone-related reference standards are thoroughly characterized using advanced analytical techniques and are supplied with comprehensive Certificates of Analysis (COA) and supporting analytical data from our USFDA certified, ISO 17025 and ISO 17034 accredited Lab, to meet global regulatory expectations. EP and USP traceable reference standards can also be provided upon request, subject to availability. Simson is also a provider of EP and USP traceable standards. To ensure consistent quality and reliability, our reference standards are periodically re-tested according to established quality management procedures.

Impurity Standards

Dapsone Impurity 13

CAT. No.D570002 CAS No.599-61-1 Mol. F.C12H12N2O2S Mol. W.248.30 g/mol Stock Status Instock
COA MSDS

Dapsone Impurity 15

CAT. No.D570042 CAS No.34262-32-3 Mol. F.C12H12N2O2S Mol. W.248.30 g/mol Stock Status Instock
COA MSDS

Dapsone Impurity 16

CAT. No.D570023 CAS No.148301-96-6 Mol. F.C12H10ClNO2S Mol. W.267.73 g/mol Stock Status Instock
COA MSDS

Dapsone Impurity 2

CAT. No.D570045 CAS No.26815-49-6 Mol. F.C12H11NO2S Mol. W.233.29 g/mol Stock Status Custom Synthesis
COA MSDS

Dapsone Impurity 24

CAT. No.D570034 CAS No.119-59-5 Mol. F.C12H12N2OS Mol. W.232.30 g/mol Stock Status Custom Synthesis
COA MSDS

Dapsone Impurity 26

CAT. No.D570010 CAS No.1156-50-9 Mol. F.C12H8N2O6S Mol. W.308.26 g/mol Stock Status Custom Synthesis
COA MSDS

Dapsone Impurity 30

CAT. No.D570033 CAS No.1774-38-5 Mol. F.C12H8N2O5S Mol. W.292.27 g/mol Stock Status Custom Synthesis
COA MSDS

Dapsone Impurity 34

CAT. No.D570037 CAS No.36679-40-0 Mol. F.C12H12N2O4S Mol. W.280.30 g/mol Stock Status Custom Synthesis
COA MSDS

Dapsone Impurity 35

CAT. No.D570038 CAS No.69391-11-3 Mol. F.C12H12N2O4S2 Mol. W.312.37 g/mol Stock Status Custom Synthesis
COA MSDS

Dapsone Impurity 38

CAT. No.D570039 CAS No.21387-93-9 Mol. F.C12H8N2O4S Mol. W.276.27 g/mol Stock Status Custom Synthesis
COA MSDS

Dapsone Impurity 39

CAT. No.D570040 CAS No.53566-73-7 Mol. F.C12H8N2O4S Mol. W.276.27 g/mol Stock Status Custom Synthesis
COA MSDS

Dapsone Impurity 40

CAT. No.D570041 CAS No.NA Mol. F.C13H14N2O2S Mol. W.262.33 g/mol Stock Status Limited Stock
COA MSDS

Dapsone Impurity 5

CAT. No.D570007 CAS No.27147-69-9 Mol. F.C12H12N2O2S Mol. W.248.31 g/mol Stock Status Custom Synthesis
COA MSDS

Dapsone Impurity 6

CAT. No.D570046 CAS No.NA Mol. F.C12H12N2O2S Mol. W.248.30 g/mol Stock Status Instock
COA MSDS

Dapsone Impurity 7

CAT. No.D570047 CAS No.NA Mol. F.C13H14N2O2S Mol. W.262.33 g/mol Stock Status Instock
COA MSDS

Dapsone N-Dimer

CAT. No.D570022 CAS No.NA Mol. F.C24H21N3O4S2 Mol. W.479.57 g/mol Stock Status Custom Synthesis
COA MSDS

N-Acetyl Dapsone

CAT. No.D570001 CAS No.565-20-8 Mol. F.C14H14N2O3S Mol. W.290.34 g/mol Stock Status Instock
COA MSDS

Isotope Labelled Compounds

Dapsone-13C12

CAT. No.D570032 CAS No.1632119-29-9 Mol. F.13C12H12N2O2S Mol. W.260.22 g/mol Stock Status Custom Synthesis
COA MSDS

Dapsone-D4

CAT. No.D570030 CAS No.1346602-12-7 Mol. F.C12H8D4N2O2S Mol. W.252.33 g/mol Stock Status Custom Synthesis
COA MSDS

Dapsone-D8

CAT. No.D570008 CAS No.557794-38-4 Mol. F.C12H4D8N2O2S Mol. W.256.35 g/mol Stock Status Under Synthesis
COA MSDS

N-Acetyl Dapsone D4

CAT. No.D570035 CAS No.2070015-08-4 Mol. F.C14H10D4N2O3S Mol. W.294.40 g/mol Stock Status Custom Synthesis
COA MSDS

N-Acetyl Dapsone D8

CAT. No.D570024 CAS No.1215635-13-4 Mol. F.C14H6D8N2O3S Mol. W.298.39 g/mol Stock Status Custom Synthesis
COA MSDS

N-Acetyl dapsone-D4-1

CAT. No.D570036 CAS No.NA Mol. F.C14H10D4N2O3S Mol. W.294.40 g/mol Stock Status Instock
COA MSDS

Product structure

Sample structure

Catalogue no.: — CAS no.: — Formula: — Mol. weight: —

Illustrative sample structure
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