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A dye with medicinal uses in methemoglobinemia and urinary tract visualization. Also has antimicrobial and antioxidant properties.
Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Methylene Blue and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Methylene Blue 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 Methylene Blue-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.

CAT No: CL-MYB-01
CAS No: 122965-43-9
Mol Wt: 284.4 : 35.5 : 18.0
Mol F: C16H18N3S : Cl : H2O
Inv Status:Custom Synthesis
CAT No: CL-MYB-02
CAS No: NA
Mol Wt: 318.8 : 35.5
Mol F: C16H17ClN3S : Cl
Inv Status:Custom Synthesis
CAT No: CL-MYB-03
CAS No: 65517-31-9
Mol Wt: 232.3
Mol F: C8H12N2O2S2
Inv Status:Custom Synthesis
CAT No: CL-MYB-04
CAS No: 1249-97-4
Mol Wt: 389.5
Mol F: C23H23N3OS
Inv Status:Custom Synthesis
CAT No: CL-MYB-05
CAS No: NA
Mol Wt: 301.4
Mol F: C16H19N3OS
Inv Status:Custom Synthesis
CAT No: CL-MYB-06
CAS No: 613-11-6
Mol Wt: 285.4
Mol F: C16H19N3S
Inv Status:Custom Synthesis
CAT No: CL-MYB-07
CAS No: 43035-11-6
Mol Wt: 248.3
Mol F: C8H12N2O3S2
Inv Status:Custom Synthesis
CAT No: CL-MYB-08
CAS No: 1698876-57-1
Mol Wt: 365.5
Mol F: C16H19N3O3S2
Inv Status:Custom Synthesis
CAT No: CL-MYB-09
CAS No: NA
Mol Wt: 257.3 : 35.5
Mol F: C14H13N2OS : Cl
Inv Status:Custom Synthesis
CAT No: CL-MYB-10
CAS No: [2516-05-4]
Mol Wt: 256.3
Mol F: C14H12N2OS
Inv Status:Custom Synthesis
CAT No: CL-MYB-11
CAS No: 581-64-6
Mol Wt: 228.3 : 35.5
Mol F: C12H10N3S : Cl
Inv Status:Custom Synthesis
CAT No: CL-MYB-12
CAS No: 15967-15-4
Mol Wt: 365.5
Mol F: C16H19N3O3S2
Inv Status:Custom Synthesis
CAT No: CL-MYB-13
CAS No: 531-53-3
Mol Wt: 256.3 : 35.5
Mol F: C14H14N3S : Cl
Inv Status:Custom Synthesis
CAT No: CL-MYB-14
CAS No: 34185-21-2
Mol Wt: 256.3 : 35.5
Mol F: C14H14N3S : Cl
Inv Status:Custom Synthesis
CAT No: CL-MYB-15
CAS No: 531-55-5
Mol Wt: 270.4 : 35.5
Mol F: C15H16N3S : Cl
Inv Status:Custom Synthesis
CAT No: CL-MYB-16
CAS No: 531-57-7
Mol Wt: 242.3 : 35.5
Mol F: C13H12N3S : Cl
Inv Status:Custom Synthesis
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