Biological StainsMethylene BluePharmaceutical Grade Methylene Blue Powder (50 gms)

Rated 4.67 out of 5


MAC BLUE – Pharmaceutical grade Methylene Blue (50 gms)

USP Grade Methylene Blue Powder

Ultra-High Purity

cGMP Manufactured

Free from Metals, Organic Impurities and Solvents

Also available in Packing sizes- 25gm, 100gm

Free Shipping Worldwide (Shipping does not include Import Duty)



Ultra High Purity Methylene Blue

  • Contains less than 1 ppm of heavy metals like mercury, arsenic, cadmium, and lead.
  • Minimum 99.5% assay
  • Full compliance with specifications of USP (United States Pharmacopoeia).
  • Contains very low organic impurities like Azure A, B, C and Thionin.
  • Free of cancer-causing nitrosamines.
  • Free of microbial contamination and endotoxins.
  • No residual Organic Solvents.
  • TSE-BSE and GMO-free.

The product will be packed in food-grade HDPE Jars. This product is shipped in powder form and you can mix it with water for preparing a solution (0.1%, 1%, 2%). Each shipment will be provided with a Batch Certificate of Analysis. 

(This product contains 50 gms of Methylene Blue Powder)

Macsen Labs is a manufacturer and supplier of several grades of Methylene Blue compound such as:-

Macsen Labs group’s Methylene Blue Synthesis Process was granted a patent from the Indian patent office

The Indian Patent Office granted a patent to Mr Achal Agrawal, CEO of Macsen Labs, Udaipur. The title of the patent is Novel Improved Method for Synthesis of Diaminophenothiazine Compounds and it concerns a novel process for synthesising the compound Methylthioninium Chloride or Methylene Blue. Macsen Labs has now achieved a unique position by this patent and from now nobody will be able to copy this process. Read more

Resources on Methylene Blue

Methylene Blue | Chemistry, Uses & Side effects

Methylene blue for treating Methemoglobinemia

Methylene Blue & Covid-19 – Research So Far

Staining with Methylene Blue | Different uses and examples

Methylene Blue’s uses in Fish Aquaculture

Methylene Blue Against Cyanide Poisoning

Methylene Blue Injection: Indications, Dosage & Brands

Methylene Blue in the treatment of Alzheimer’s

Malaria Treatment with Methylene Blue

Methylene Blue Treatment for Lumpy Skin disease in cattle


We do not claim or recommend any particular use of Methylene Blue. Use in accordance to the prevailing laws of your country/state. The term “pharmaceutical grade” or “USP” are only to represent the quality of the product and not the use. We sell as API/Bulk drug only to licensed distributors/end users.

This product is not an API, Bulk drug, Pharmaceutical or Medicine.

We do not supply patent infringing specifications material to applicable territories.

    6 reviews for Pharmaceutical Grade Methylene Blue Powder (50 gms)

    • Sneha

      June 21, 2022 at 9:01 am

      5 out of 5

      Excellent and quick service.
      The product was high quality pharma grade methylene blue source. Overall a good purchase and the product quality was at par.


    • Cynthia Burito

      June 21, 2022 at 9:07 am

      4 out of 5

      Bought the 50 gm methylene blue for $410 from Macsen’s online store after doing thorough research on sources for pharmaceutical-grade methylene blue.
      If you need pharma grade methylene blue then it is very difficult to source it in the retail market as most suppliers will send you low quality product which has many impurities and not suitable for end uses that need better quality material.
      Macsen is an old manufacturer of methylene blue, hence their retail product is coming straight from the source along with the batch certificate of analysis which tells you about the several test results of the product confirming to the levels of its quality.
      The shipment took some time to reach but the product’s quality levels were as expected and it rendered the desired results.


    • Tasneem Poonawala

      June 21, 2022 at 9:20 am

      5 out of 5

      The product did meet the quality expectations and the delivery was fast. Totally satisfied!


    • Shivani Sriram

      June 21, 2022 at 9:23 am

      5 out of 5

      The product is of excellent quality and meets our requirements.


    • Sudarshan Patel

      June 21, 2022 at 4:27 pm

      4 out of 5

      The product quality is great. It was shipped within a week. Packaging was perfect.
      I wanted high quality USP grade methylene blue for research purpose which was really hard to source at this price from a reliable store. The product comes with a COA so I could see that the specifications met my requirements. Most people who sell methylene blue powder online sell the dye grade or technical grade material which is not really usable if you need pharmaceutical grade methylene blue.


    • Tamanna

      June 21, 2022 at 5:18 pm

      5 out of 5

      Amazing product!
      The products quality is USP grade, the service was also quick.


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