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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Bleomycin and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Bleomycin 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 Bleomycin-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 Bleomycin
CAT No: CL-BMS-NO-01 CAS No: NA Mol Wt: 1444.55 Mol F: C55H83N18O22S3+ Inv Status: Custom Synthesis
Chemical Name: (3-(2'-((3S,6R,7S,8S,11S)-1-(6-amino-2-((S)-3-amino-1-(((S)-2,3-diamino-3-oxopropyl)(nitroso)amino)-3-oxopropyl)-5-methylpyrimidin-4-yl)-3-((((2R,3S,4S,5S,6S)-3-(((2R,3S,4S,5R,6R)-4-(carbamoyloxy)-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)(1H-imidazol-4-yl)methyl)-7-hydroxy-11-((R)-1-hydroxyethyl)-6,8-dimethyl-1,4,9,12-tetraoxo-2,5,10,13-tetraazapentadecan-15-yl)-[2,4'-bithiazole]-4-carboxamido)propyl)dimethylsulfonium
N-Nitroso Bleomycin Impurity A
CAT No: CL-BMS-NO-02 CAS No: NA Mol Wt: 1342.33 Mol F: C50H71N17O23S2 Inv Status: Custom Synthesis
Chemical Name: 2'-((3S,6R,7S,8S,11S)-1-(6-amino-2-((S)-3-amino-1-(((S)-2,3-diamino-3-oxopropyl)(nitroso)amino)-3-oxopropyl)-5-methylpyrimidin-4-yl)-3-((((2R,3S,4S,5S,6S)-3-(((2R,3S,4S,5R,6R)-4-(carbamoyloxy)-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)(1H-imidazol-4-yl)methyl)-7-hydroxy-11-((R)-1-hydroxyethyl)-6,8-dimethyl-1,4,9,12-tetraoxo-2,5,10,13-tetraazapentadecan-15-yl)-[2,4'-bithiazole]-4-carboxylic acid
N-Nitroso Bleomycin Impurity B
CAT No: CL-BMS-NO-03 CAS No: NA Mol Wt: 1469.56 Mol F: C57H88N20O22S2 Inv Status: Custom Synthesis
Chemical Name: (2R,3S,4S,5R,6R)-2-(((2R,3S,4S,5S,6S)-2-((2S)-2-(6-amino-2-((S)-3-amino-1-(((S)-2,3-diamino-3-oxopropyl)(nitroso)amino)-3-oxopropyl)-5-methylpyrimidine-4-carboxamido)-3-(((2R,3S,4S)-5-(((2S,3R)-1-((2-(4-((3-((4-aminobutyl)amino)propyl)carbamoyl)-[2,4'-bithiazol]-2'-yl)ethyl)amino)-3-hydroxy-1-oxobutan-2-yl)amino)-3-hydroxy-4-methyl-5-oxopentan-2-yl)amino)-1-(1H-imidazol-4-yl)-3-oxopropoxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-4-yl carbamate
N-Nitroso Bleomycin Impurity C
CAT No: CL-BMS-NO-04 CAS No: NA Mol Wt: 1567.67 Mol F: C60H94N24O22S2 Inv Status: Custom Synthesis
Chemical Name: (2R,3S,4S,5R,6R)-2-(((2R,3S,4S,5S,6S)-2-((2S)-2-(6-amino-2-((S)-3-amino-1-(((S)-2,3-diamino-3-oxopropyl)(nitroso)amino)-3-oxopropyl)-5-methylpyrimidine-4-carboxamido)-3-(((2R,3S,4S)-5-(((2S,3R)-1-((2-(4-((4-(3-(4-guanidinobutyl)guanidino)butyl)carbamoyl)-[2,4'-bithiazol]-2'-yl)ethyl)amino)-3-hydroxy-1-oxobutan-2-yl)amino)-3-hydroxy-4-methyl-5-oxopentan-2-yl)amino)-1-(1H-imidazol-4-yl)-3-oxopropoxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-4-yl carbamate
N-Nitroso Bleomycin Impurity D
CAT No: CL-BMS-NO-05 CAS No: NA Mol Wt: 1429.52 Mol F: C54H80N18O22S3 Inv Status: Custom Synthesis
Chemical Name: (2R,3S,4S,5R,6R)-2-(((2R,3S,4S,5S,6S)-2-((2S)-2-(6-amino-2-((S)-3-amino-1-(((S)-2,3-diamino-3-oxopropyl)(nitroso)amino)-3-oxopropyl)-5-methylpyrimidine-4-carboxamido)-3-(((2R,3S,4S)-3-hydroxy-5-(((2S,3R)-3-hydroxy-1-((2-(4-((3-(methylthio)propyl)carbamoyl)-[2,4'-bithiazol]-2'-yl)ethyl)amino)-1-oxobutan-2-yl)amino)-4-methyl-5-oxopentan-2-yl)amino)-1-(1H-imidazol-4-yl)-3-oxopropoxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-4-yl carbamate
N-Nitroso Bleomycin Impurity 1
CAT No: CL-BMS-NO-06 CAS No: NA Mol Wt: 1454.51 Mol F: C55H83N21O22S2 Inv Status: Custom Synthesis
Chemical Name: (2R,3S,4S,5R,6R)-2-(((2R,3S,4S,5S,6S)-2-((1R,2S)-2-(6-amino-2-((S)-3-amino-1-(((S)-2,3-diamino-3-oxopropyl)(nitroso)amino)-3-oxopropyl)-5-methylpyrimidine-4-carboxamido)-3-(((2R,3S,4S)-5-(((2S,3R)-1-((2-(4-((4-guanidinobutyl)carbamoyl)-[2,4'-bithiazol]-2'-yl)ethyl)amino)-3-hydroxy-1-oxobutan-2-yl)amino)-3-hydroxy-4-methyl-5-oxopentan-2-yl)amino)-1-(1H-imidazol-5-yl)-3-oxopropoxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-4-yl carbamate
N-Nitroso Bleomycin Impurity 2
CAT No: CL-BMS-NO-07 CAS No: NA Mol Wt: 1445.53 Mol F: C55H82N17O23S3+ Inv Status: Custom Synthesis
Chemical Name: (3-(2'-(1-(6-amino-2-(2-carboxy-1-((2,3-diamino-3-oxopropyl)(nitroso)amino)ethyl)-5-methylpyrimidin-4-yl)-3-((((2R,3S,4S,5S,6S)-3-(((3S,4S,5R,6R)-4-(carbamoyloxy)-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)(1H-imidazol-4-yl)methyl)-7-hydroxy-11-(1-hydroxyethyl)-6,8-dimethyl-1,4,9,12-tetraoxo-2,5,10,13-tetraazapentadecan-15-yl)-[2,4'-bithiazole]-4-carboxamido)propyl)dimethylsulfonium
N-Nitroso Bleomycin Impurity 3
CAT No: CL-BMS-NO-08 CAS No: NA Mol Wt: 1474.53 Mol F: C55H81N18O24S3+ Inv Status: Custom Synthesis
Chemical Name: (3-(2'-(1-(6-amino-2-(2-carboxy-1-((2,3-diamino-3-oxopropyl)(nitroso)amino)ethyl)-5-methylpyrimidin-4-yl)-3-((((2R,3S,4S,5S,6S)-3-(((3S,4S,5R,6R)-4-(carbamoyloxy)-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)(1-nitroso-1H-imidazol-4-yl)methyl)-7-hydroxy-11-(1-hydroxyethyl)-6,8-dimethyl-1,4,9,12-tetraoxo-2,5,10,13-tetraazapentadecan-15-yl)-[2,4'-bithiazole]-4-carboxamido)propyl)dimethylsulfonium
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