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

Belzutifan

CAT No: CL-BZTN-001 CAS No: 1672668-24-4 Mol Wt: 383.3 Mol F: C17H12F3NO4S Inv Status: Custom Synthesis

Chemical Name: 3-(((1S,2S,3R)-2,3-Difluoro-1-hydroxy-7-(methylsulfonyl)-2,3-dihydro-1H-inden-4-yl)oxy)-5-fluorobenzonitrile

Belzutifan Hydroxy Impurity

CAT No: CL-BZTN-002 CAS No: NA Mol Wt: 744.7 Mol F: C34H24F4N2O9S2 Inv Status: Custom Synthesis

Chemical Name: 3-(((1S,2S,3R)-3-(((1S,2S,3S)-7-(3-cyano-5-fluorophenoxy)-2-fluoro-3-hydroxy-4-(methylsulfonyl)-2,3-dihydro-1H-inden-1-yl)oxy)-2-fluoro-1-hydroxy-7-(methylsulfonyl)-2,3-dihydro-1H-inden-4-yl)oxy)-5-fluorobenzonitrile

Belzutifan Amide Impurity

CAT No: CL-BZTN-003 CAS No: 3028971-74-3 Mol Wt: 401.4 Mol F: C17H14F3NO5S Inv Status: Custom Synthesis

Chemical Name: 3-(((1S,2S,3R)-2,3-difluoro-1-hydroxy-7-(methylsulfonyl)-2,3-dihydro-1H-inden-4-yl)oxy)-5-fluorobenzamide

Belzutifan Des-Cyano Impurity

CAT No: CL-BZTN-004 CAS No: 3029006-78-5 Mol Wt: 358.3 Mol F: C16H13F3O4S Inv Status: Custom Synthesis

Chemical Name: (1S,2S,3R)-2,3-difluoro-4-(3-fluorophenoxy)-7-(methylsulfonyl)-2,3-dihydro-1H-inden-1-ol

Belzutifan Des-Fluoro Impurity

CAT No: CL-BZTN-005 CAS No: 1672666-80-6 Mol Wt: 365.4 Mol F: C17H13F2NO4S Inv Status: Custom Synthesis

Chemical Name: 3-Fluoro-5-(((1S,2R)-2-fluoro-1-hydroxy-7-(methylsulfonyl)-2,3-dihydro-1H-inden-4-yl)oxy)benzonitrile

Belzutifan Impurity 1

CAT No: CL-BZTN-006 CAS No: 1672665-53-0 Mol Wt: 389.4 Mol F: C19H16FNO5S Inv Status: Custom Synthesis

Chemical Name: 3-Fluoro-5-((7-(methylsulfonyl)-2,3-dihydrospiro[indene-1,2'-[1,3]dioxolan]-4-yl)oxy)benzonitrile

Belzutifan Impurity 2

CAT No: CL-BZTN-007 CAS No: 2739737-08-5 Mol Wt: 468.3 Mol F: C19H15BrFNO5S Inv Status: Custom Synthesis

Chemical Name: 3-((3-Bromo-7-(methylsulfonyl)-2,3-dihydrospiro[indene-1,2'-[1,3]dioxolan]-4-yl)oxy)-5-fluorobenzonitrile

Belzutifan Impurity 3

CAT No: CL-BZTN-008 CAS No: 1672668-23-3 Mol Wt: 425.4 Mol F: C19H14F3NO5S Inv Status: Custom Synthesis

Chemical Name: (R)-4-(3-Cyano-5-fluorophenoxy)-3,3-difluoro-7-(methylsulfonyl)-2,3-dihydro-1H-inden-1-yl acetate

Belzutifan Impurity 4

CAT No: CL-BZTN-009 CAS No: NA Mol Wt: 403.4 Mol F: C19H14FNO6S Inv Status: Custom Synthesis

Chemical Name: (R)-4-(3-Cyano-5-fluorophenoxy)-7-(methylsulfonyl)-3-oxo-2,3-dihydro-1H-inden-1-yl acetate

Belzutifan Impurity 5

CAT No: CL-BZTN-010 CAS No: 1672668-21-1 Mol Wt: 405.4 Mol F: C19H16FNO6S Inv Status: Custom Synthesis

Chemical Name: (1R,3S)-4-(3-Cyano-5-fluorophenoxy)-3-hydroxy-7-(methylsulfonyl)-2,3-dihydro-1H-inden-1-yl acetate

Belzutifan Impurity 6

CAT No: CL-BZTN-011 CAS No: 1672668-20-0 Mol Wt: 468.3 Mol F: C19H15BrFNO5S Inv Status: Custom Synthesis

Chemical Name: (1R,3S)-3-Bromo-4-(3-cyano-5-fluorophenoxy)-7-(methylsulfonyl)-2,3-dihydro-1H-inden-1-yl acetate

Belzutifan Impurity 7

CAT No: CL-BZTN-012 CAS No: NA Mol Wt: 389.4 Mol F: C19H16FNO5S Inv Status: Custom Synthesis

Chemical Name: (R)-4-(3-Cyano-5-fluorophenoxy)-7-(methylsulfonyl)-2,3-dihydro-1H-inden-1-yl acetate

Belzutifan Impurity 8

CAT No: CL-BZTN-013 CAS No: 1672667-92-3 Mol Wt: 538.3 Mol F: C18H12BrF4N3O5S Inv Status: Custom Synthesis

Chemical Name: 3-Azido-4-(3-bromo-5-fluorophenoxy)-7-((trifluoromethyl)sulfonyl)-2,3-dihydrospiro[indene-1,2'-[1,3]dioxolane]

Belzutifan Impurity 9

CAT No: CL-BZTN-014 CAS No: 1672667-02-5 Mol Wt: 432.3 Mol F: C17H9F5N2O4S Inv Status: Custom Synthesis

Chemical Name: 4-((1H-Indazol-4-yl)oxy)-2,2-difluoro-7-((trifluoromethyl)sulfonyl)-2,3-dihydro-1H-inden-1-one

Belzutifan Impurity 10

CAT No: CL-BZTN-015 CAS No: 2763749-23-9 Mol Wt: 379.3 Mol F: C17H11F2NO5S Inv Status: Custom Synthesis

Chemical Name: 3-Fluoro-5-(((2S,3S)-2-fluoro-3-hydroxy-7-(methylsulfonyl)-1-oxo-2,3-dihydro-1H-inden-4-yl)oxy)benzonitrile

Belzutifan Impurity 11

CAT No: CL-BZTN-016 CAS No: 1672665-67-6 Mol Wt: 331.4 Mol F: C17H14FNO3S Inv Status: Custom Synthesis

Chemical Name: 3-(2-(3-Cyano-5-fluorophenoxy)-5-(methylthio)phenyl)propanoic acid

Belzutifan Impurity 12

CAT No: CL-BZTN-017 CAS No: NA Mol Wt: 437.2 Mol F: C16H12BrF3O4S Inv Status: Custom Synthesis

Chemical Name: (1S,2S,3R)-4-(3-bromo-5-fluorophenoxy)-2,3-difluoro-7-(methylsulfonyl)-2,3-dihydro-1H-inden-1-ol

Belzutifan Impurity 13

CAT No: CL-BZTN-018 CAS No: NA Mol Wt: 401.3 Mol F: C17H11F4NO4S Inv Status: Custom Synthesis

Chemical Name: 3-(((1S,2S,3R)-2,3-difluoro-1-hydroxy-7-(methylsulfonyl)-2,3-dihydro-1H-inden-4-yl)oxy)-4,5-difluorobenzonitrile

Belzutifan Impurity 14

CAT No: CL-BZTN-019 CAS No: NA Mol Wt: 714.6 Mol F: C32H24F6O8S2 Inv Status: Custom Synthesis

Chemical Name: (1S,2S,3R)-4-((3'-(((1S,2S,3R)-2,3-difluoro-1-hydroxy-7-(methylsulfonyl)-2,3-dihydro-1H-inden-4-yl)oxy)-5,5'-difluoro-[1,1'-biphenyl]-3-yl)oxy)-2,3-difluoro-7-(methylsulfonyl)-2,3-dihydro-1H-inden-1-ol

Belzutifan 13C, D3

CAT No: CL-BZTN-020 CAS No: NA Mol Wt: 387.4 Mol F: C1613CH9D3F3NO4S Inv Status: Custom Synthesis

Chemical Name: 3-(((1S,2S,3R)-2,3-Difluoro-1-hydroxy-7-((methyl-13C-d3)sulfonyl)-2,3-dihydro-1H-inden-4-yl)oxy)-5-fluorobenzonitrile

Type:Impurity Reference Standard

Total Products: 20

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