Methylene Blue Impurities

Methylene Blue Related Products

SynZeal is a leading innovator in pharmaceutical reference standards. We supply high-quality Reference Standards of Methylene Blue, pharmacopeial and non-pharmacopeial Methylene Blue impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Methylene Blue impurities reference standards are useful in pharmaceutical research. They are useful in product development, ANDA and DMF filing, quality control (QC), method validation, and stability studies. It is also useful in the identification of unknown impurities and the assessment of genotoxic potential.

Methylene Blue-related products are thoroughly characterized. Methylene Blue products are supplied with detailed COA & analytical data meeting regulatory compliance. We can also provide EP/USP traceable standards based on your requirements. The supplied products are re-tested at regular intervals.

Pharmaceutical Reference Standards

Azure A Impurity

SZ CAT No:	: SZ-M114002
CAS No	: 531-53-3
Mol.F.	: C14H14N3S : Cl
Mol.Wt.	: 256.3 : 35.5
Inv. Status	: Custom Synthesis
Rel. CAS No	: 29120-23-8 (free base)

Azure A Isomer

SZ CAT No:	: SZ-M114004
CAS No	: 34185-21-2
Mol.F.	: C14H14N3S : Cl
Mol.Wt.	: 256.3 : 35.5
Inv. Status	: Custom Synthesis
Rel. CAS No	: 39093-22-6 (free base)

Azure B

SZ CAT No:	: SZ-M114008
CAS No	: 531-55-5
Mol.F.	: C15H16N3S : Cl
Mol.Wt.	: 270.4 : 35.5
Inv. Status	: Custom Synthesis
Rel. CAS No	: 29260-45-5 (free base)

Azure C Impurity

SZ CAT No:	: SZ-M114003
CAS No	: 531-57-7
Mol.F.	: C13H12N3S : Cl
Mol.Wt.	: 242.3 : 35.5
Inv. Status	: Custom Synthesis
Rel. CAS No	: 30719-07-4 (free base)

Benzoyl Leuco Methylene Blue

SZ CAT No:	: SZ-M114006
CAS No	: 1249-97-4
Mol.F.	: C23H23N3OS
Mol.Wt.	: 389.5
Inv. Status	: Custom Synthesis

Hydroxy Methylene Blue

SZ CAT No:	: SZ-M114015
CAS No	: NA
Mol.F.	: C16H19N3OS
Mol.Wt.	: 301.4
Inv. Status	: Custom Synthesis

Leucomethylene Blue

SZ CAT No:	: SZ-M114014
CAS No	: 613-11-6
Mol.F.	: C16H19N3S
Mol.Wt.	: 285.4
Inv. Status	: Custom Synthesis
Rel. CAS No	: 93798-32-4 (HCl salt) ; 951131-10-5 (2HCl salt) ; 951131-15-0 (2HBr salt)

Methylene Blue

SZ CAT No:	: SZ-M114001
CAS No	: 122965-43-9
Mol.F.	: C16H18N3S : Cl : H2O
Mol.Wt.	: 284.4 : 35.5 : 18.0
Inv. Status	: Custom Synthesis
Rel. CAS No	: 7060-82-4 (free base)

Methylene Blue Impurity 1

SZ CAT No:	: SZ-M114007
CAS No	: NA
Mol.F.	: C16H17ClN3S : Cl
Mol.Wt.	: 318.8 : 35.5
Inv. Status	: Custom Synthesis

Methylene Blue Impurity 2

SZ CAT No:	: SZ-M114010
CAS No	: 65517-31-9
Mol.F.	: C8H12N2O2S2
Mol.Wt.	: 232.3
Inv. Status	: Custom Synthesis

Methylene Blue Impurity 3

SZ CAT No:	: SZ-M114011
CAS No	: 43035-11-6
Mol.F.	: C8H12N2O3S2
Mol.Wt.	: 248.3
Inv. Status	: Custom Synthesis
Rel. CAS No	: 1010862-16-4 (sodium salt)

Methylene Blue Impurity 4

SZ CAT No:	: SZ-M114013
CAS No	: 1698876-57-1
Mol.F.	: C16H19N3O3S2
Mol.Wt.	: 365.5
Inv. Status	: Custom Synthesis

Methylene Blue Impurity 5

SZ CAT No:	: SZ-M114017
CAS No	: 2222707-89-1
Mol.F.	: C14H13N2OS
Mol.Wt.	: 257.3
Inv. Status	: Custom Synthesis

Methylene Violet

SZ CAT No:	: SZ-M114009
CAS No	: 2516-05-4
Mol.F.	: C14H12N2OS
Mol.Wt.	: 256.3
Inv. Status	: Custom Synthesis
Rel. CAS No	: 1242769-80-7 (trihydrochloride)

Thionine

SZ CAT No:	: SZ-M114016
CAS No	: 26754-93-8
Mol.F.	: C12H10N3S
Mol.Wt.	: 228.3
Inv. Status	: Custom Synthesis
Rel. CAS No	: 581-64-6 (chloride)

Thiosulfonic Acid Bindschedler Green (V)

SZ CAT No:	: SZ-M114005
CAS No	: 15967-15-4
Mol.F.	: C16H20N3O3S2
Mol.Wt.	: 366.5
Inv. Status	: Custom Synthesis

Possible Nitroso Standards

N-Nitroso Azure B

SZ CAT No:	: SZ-M114012
CAS No	: NA
Mol.F.	: C15H15N4OS
Mol.Wt.	: 299.4
Inv. Status	: Custom Synthesis

N-Nitroso Azure C

SZ CAT No:	: SZ-M114018
CAS No	: NA
Mol.F.	: C13H11N4OS
Mol.Wt.	: 271.3 : 35.5
Inv. Status	: Custom Synthesis

Stable Isotopes And Metabolites

N-Nitroso Azure B D3

SZ CAT No:	: SZ-M114D01
CAS No	: NA
Mol.F.	: C15H12D3N4OS
Mol.Wt.	: 302.4
Inv. Status	: Custom Synthesis

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