Methylene Blue from Xcel Peptides

Xcel Peptides supplies Methylene Blue as an encapsulated research compound for laboratory use. We test every batch independently before release, and we publish the certificate of analysis on this page, matched to the batch number on your bottle.

What Is Methylene Blue

Methylene Blue, also called methylthioninium chloride, is a synthetic phenothiazine dye. Laboratories have used it for more than a century as a biological stain and a redox indicator. It cycles reversibly between an oxidized blue form and a reduced colorless form, which is why it works as an electron carrier in redox chemistry.

Specifications

The product is research grade, supplied as an encapsulated solid. The capsule serves only as a way to contain, store, and measure the material, and it says nothing about how anyone should use it. We verify every batch through third-party HPLC and identity analysis, and we document it with a matched COA. We ship every order with tracking.

Research Applications

Researchers study Methylene Blue in redox chemistry and cellular electron transfer research. Typical work examines how it accepts and donates electrons in NADH-dependent systems, how it interacts with mitochondrial electron transport pathways, and how it modulates nitric oxide signaling in experimental models. Laboratories also continue to use it for staining, microscopy, and general assay development.

These describe research applications, not therapeutic claims. The FDA has not evaluated this product, and researchers should not use it to diagnose, treat, cure, or prevent any condition.

Why Buy Methylene Blue From Xcel Peptides

Grade and purity vary widely for this compound, because it is sold as everything from industrial dye to analytical reagent. Xcel Peptides tests each batch for identity and purity and publishes the results, so you know the material matches your assay requirements.

We also publish our results openly. You can match the batch number on your bottle to the COA before you start work, instead of relying on a generic purity claim.

Storage and Handling

Keep Methylene Blue sealed, dry, and away from light, since the compound is light-sensitive. The dye stains skin, clothing, and surfaces, so wear gloves and a lab coat and clean spills right away. Record the batch number and opening date in your lab notes.

Verifying Your COA

Check three things on the COA before you use this product. First, confirm the batch number matches your bottle. Second, confirm the test date is recent. Third, confirm the HPLC purity and the identity result match the specification for your size. If you need archived data for a previous lot, contact our team and we’ll pull it for you.

Disclaimer (place directly under description): Xcel Peptides supplies Methylene Blue for laboratory and research use only. It is not a drug, dietary supplement, or food, and researchers should not use it for human or animal consumption, or for diagnostic or therapeutic use. Nothing on this page constitutes medical advice.

Frequently Asked Questions

What is Methylene Blue? It’s a synthetic phenothiazine dye used as a biological stain and redox indicator. Xcel Peptides supplies it as a research-grade capsule product.

Is Methylene Blue the same as methylthioninium chloride? Yes. Methylthioninium chloride is the formal chemical name for the same compound.

Why does Methylene Blue stain so strongly? Its oxidized form is an intense blue dye, which is why it works well for staining. Always wear gloves and clean spills promptly.

Does Methylene Blue come with a COA? Yes. Xcel Peptides ships every bottle with a batch-matched certificate of analysis confirming identity and purity.

How should I store Methylene Blue? Keep it sealed in a cool, dry place, protected from light and moisture.

How fast does Xcel Peptides ship this product? We ship most orders within 1 to 2 business days, with tracking included.