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Methylene Blue

Methylene Blue is a synthetic small-molecule compound belonging to the phenothiazine chemical class. It has a long history of use as a chemical dye and redox indicator in laboratory and analytical research environments.

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Product Usage: Not for Human or Veterinary UsePure Health Peptides products are supplied to qualified research professionals and institutional users for in vitro laboratory research only. KYC verification is required prior to order fulfillment, and we reserve the right to refuse orders that do not meet buyer qualification criteria. These products are not drugs, foods, cosmetics, diagnostic products, or dietary supplements, have not been evaluated by the FDA, and are not intended for human or animal use. Any such use is prohibited and may violate federal, state, or local law. By purchasing, the buyer represents and warrants that the product will be used solely for in vitro research. The buyer agrees to indemnify, defend, and hold harmless Pure Health Peptides, its officers, employees, and agents from and against any and all claims, damages, losses, liabilities, costs, and expenses (including reasonable attorneys fees) arising out of or relating to the buyer’s use, handling, storage, or disposition of the product in any manner inconsistent with its research-use-only designation or applicable law.

Description

Product Name:

Methylene Blue (Encapsulated Solid)

Chemical Information:
  • Chemical Name: Methylene Blue
  • Chemical Class: Phenothiazine dye (small-molecule compound)
  • Molecular Formula: C₁₆H₁₈ClN₃S
  • Molecular Weight: ~319.85 g/mol
Molecular Structure:



Molecular Structure

Product Description:

Methylene Blue is a synthetic small-molecule compound belonging to the phenothiazine chemical class. It has a long history of use as a chemical dye and redox indicator in laboratory and analytical research environments.

This product is supplied in an encapsulated solid format to support controlled storage, handling, and analytical preparation within laboratory research settings. The encapsulated format serves solely as a physical containment and presentation method and does not imply any route of administration or intended method of use.

Methylene Blue is intended exclusively for controlled in-vitro laboratory research conducted by qualified professionals working with small-molecule compounds.

Research Applications:
  • In-vitro use as a redox indicator in biochemical and chemical assay systems
  • Analytical method development involving phenothiazine dyes
  • Laboratory studies of small-molecule redox behavior under controlled conditions
  • Comparative evaluation of synthetic dyes and redox-active compounds in research models
Storage and Handling:
  • Store in a cool, dry environment away from direct light
  • Maintain container tightly sealed when not in use
  • Handle using appropriate laboratory safety and aseptic techniques
Product Specifications:
  • Analytical Approach to Finished Formulations: Purity is a metric used for isolated raw materials, such as lyophilized peptide powders. Finished formulations—such as capsules, liquids, and topicals—contain multiple components, including excipients and stabilizers. In these systems, a single purity value does not accurately represent the overall composition. Instead, identity and assay (content) are reported on the COA to confirm the presence of the correct compound and to verify that the labeled amount per unit is accurate. This approach reflects standard analytical practice and provides more meaningful information for research applications.
  • Format: Encapsulated solid research compound
  • Appearance: Blue crystalline solid
  • Solubility: Soluble in appropriate laboratory solvents following removal from the encapsulation format for analytical use
Compliance Notice:

Methylene Blue is FOR RESEARCH USE ONLY. It is not intended for human or veterinary use. This product has not been evaluated by the FDA. Misuse of this product is strictly prohibited and may violate federal, state, or local laws. By purchasing this product, buyer represents and warrants that it will be used only for in vitro research purposes.

Certificate of Analysis

Certificate of Analysis

At Pure Health Peptides, transparency is key. Every batch is third-party tested in the USA, with Certificates of Analysis (COAs) readily available for verification, giving researchers confidence in their work.

View Certifications

Frequently Asked Questions

What is Methylene Blue?
Methylene Blue is a synthetic small-molecule compound of the phenothiazine chemical class, with molecular formula C16H18ClN3S and a molecular weight of approximately 319.85 g/mol. It has a long history as a chemical dye and redox indicator in laboratory and analytical research. Pure Health Peptides supplies it as an encapsulated solid strictly for in vitro laboratory research.
What is Methylene Blue used for in research?
In controlled laboratory settings, Methylene Blue is used as a chemical dye, a staining agent, and a redox (oxidation-reduction) indicator, and in analytical method development involving phenothiazine compounds. All applications are in vitro and analytical; it is supplied for laboratory research only.
What chemical class is Methylene Blue, and what is it made from?
Methylene Blue is a synthetic organic compound belonging to the phenothiazine class of dyes. It is produced by chemical synthesis - it is not derived from peptides or biological material - and carries the molecular formula C16H18ClN3S. Its intense blue color is characteristic of the phenothiazine dye structure.
How does Methylene Blue behave as a redox compound in research?
As a redox indicator, Methylene Blue can shift between an oxidized (blue) and a reduced (colorless) state, which is why it is used to track oxidation-reduction reactions and electron-transfer behavior in biochemical and analytical assay systems. This is studied strictly in vitro and non-clinically.
What are its chemical specifications, and what size does it come in?
Methylene Blue has the molecular formula C16H18ClN3S and a molecular weight of approximately 319.85 g/mol. It is supplied in an encapsulated solid format, 20 mg per capsule. The encapsulated format is a physical containment and presentation method only and does not imply any route of administration. Store in a cool, dry place away from light and moisture.
Where can I buy Methylene Blue, and is it third-party tested?
Methylene Blue is available from Pure Health Peptides as research-grade material in a 20 mg-per-capsule format. Every production lot is third-party tested in the US, with a lot-specific Certificate of Analysis available for verification.
Is Methylene Blue intended for human or clinical use?
No. This product is for research use only and is not intended for human or veterinary use. It is not a pharmaceutical-grade or USP product and has not been evaluated by the FDA; it is not a drug, food, cosmetic, or dietary supplement. It is supplied only to qualified research professionals for in vitro laboratory research, and KYC verification is required prior to fulfillment. Any use outside of controlled in vitro research is strictly prohibited.