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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Methylene Blue, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Methylene Blue impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Methylene Blue-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Methylene Blue Related Compounds

API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Azure A Isomer API CS-EO-02328 34185-21-2 Enquire
Methylene Blue API CS-T-82104 122965-43-9 In Stock


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Amino-5-(Dimethylamino)-Benzenethiol Sulfate Impurity CS-ED-01385 43035-11-6 In Stock
Azure B Impurity CS-ED-00595 531-55-5 Enquire
Methylene Blue Impurity 19 Impurity CS-O-59648 126656-05-1 Enquire
Thiosulfonic Acid Bindschedler Green Impurity CS-O-37671 15967-15-4 In Stock


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Azure A Intermediate CS-AC-12216 531-53-3 In Stock
Azure -C Intermediate CS-O-34552 531-57-7 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Leucomethylene blue (Mesylate) Fine Chemicals CS-ZE-20850 1236208-20-0 Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Methylene Blue Secondary Standards CS-SS-26295-1GM 122965-43-9 Enquire


Analytical Standard

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-desmethyl-N-nitroso-methylene blue Analytical Standard CS-O-47878-10MG Not Available Enquire
N-nitroso-desmethyl-methylene blue-100 PPM in Acetonitrile Analytical Standard CS-O-47878-1.5ML Not Available Enquire


Biochemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Jenners Stain (Eosin-methylene blue) for cell culture Biochemicals CS-SR-00512 62851-42-7 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Hydroxy Methylene Blue Building Blocks CS-O-51642 Not Available Enquire
Leucomethylene blue Building Blocks CS-O-51641 613-11-6 Enquire


Dyes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Chloro Methylene Blue Dyes CS-O-44193 ---- Enquire
N-Benzoylleucomethylene Blue Dyes CS-O-44194 1249-97-4 Enquire
Leucomethylene blue Dyes CS-ED-01925 613-11-6 Enquire
Methyl Red − Methylene Blue solution Dyes CS-BX-00787 Not Available Enquire
Methylene Blue Trihydrate Dyes CS-T-58018 7220-79-3 Enquire