Description
Methylene Blue Research Compound
Methylene Blue Research Compound is a synthetic small-molecule phenothiazine used in laboratory and analytical research. It is chemically distinct from peptide-based research products and does not have an amino-acid sequence.
Methylene Blue has a long-established identity as a phenothiazine dye and redox indicator, making it relevant to controlled research involving chemical redox systems, analytical methods, and biochemical assays.
The anhydrous chloride form is represented by the molecular formula C₁₆H₁₈ClN₃S and has a molecular weight of approximately 319.85 g/mol. NIST identifies methylthioninium chloride as a synonym and reports CAS 61-73-4 for this form.
Methylene Blue Chemical Identity
| Specification | Information |
|---|---|
| Product Name | Methylene Blue |
| Chemical Type | Synthetic small molecule |
| Chemical Class | Phenothiazine dye |
| Common Chemical Name | Methylthioninium chloride |
| Molecular Formula | C₁₆H₁₈ClN₃S* |
| Molecular Weight | ~319.85 g/mol* |
| CAS Number | 61-73-4* |
| Peptide Sequence | Not applicable |
| Research Classification | Small-molecule research compound |
*These values correspond to the anhydrous chloride form. The exact chemical form and lot-specific specifications of the LV product should be confirmed against the applicable COA. NIST reports the formula, molecular weight, and CAS for this form.
Research Applications
Methylene Blue is particularly suitable for describing research applications around its chemical and analytical properties, rather than making therapeutic claims.
Potential laboratory research areas include:
- Redox indicator studies
- Small-molecule characterization
- Analytical method development
- Phenothiazine chemistry
- Controlled biochemical assay systems
- Comparative redox-compound research
- Chemical oxidation–reduction studies
- In-vitro experimental models
- Spectroscopic and analytical investigations
The supplied product information specifically identifies redox-indicator applications, analytical method development, small-molecule redox behavior, and comparative evaluation of synthetic dyes and redox-active compounds.
Methylene Blue and Redox Research
One of the most useful scientific concepts to emphasize on the product page is redox behavior.
Methylene Blue can participate in reversible oxidation–reduction processes, which makes it useful as a model compound in laboratory investigations of electron-transfer chemistry.
This gives LV Longevity Peptides an opportunity to create technically useful supporting content around:
- Oxidation–reduction chemistry
- Electron-transfer systems
- Redox indicators
- Small-molecule analytical characterization
- Biochemical assay design
- Spectrophotometric research
Chemical Information:
- Chemical Name: Methylene Blue
- Chemical Class: Phenothiazine dye (small-molecule compound)
- Molecular Formula: C₁₆H₁₈ClN₃S
- Molecular Weight: ~319.85 g/mol
Molecular Structure:

FAQ
What is Methylene Blue?
Methylene Blue is a synthetic small-molecule compound belonging to the phenothiazine chemical class. It is widely used as a dye and redox indicator in laboratory and analytical research.
Is Methylene Blue a peptide?
No. Methylene Blue is a synthetic small molecule and does not contain a peptide chain or amino-acid sequence.
What is the molecular formula of Methylene Blue?
For the anhydrous chloride form, the molecular formula is C₁₆H₁₈ClN₃S.
What is the molecular weight of Methylene Blue?
The molecular weight of anhydrous Methylene Blue chloride is approximately 319.85 g/mol.
What is the CAS number for Methylene Blue?
The CAS number reported by NIST for the anhydrous chloride form is 61-73-4. Hydrated forms can have different registry identifiers, so the exact form should be checked against the applicable documentation.
What is Methylene Blue used for in research?
Methylene Blue can be investigated as a redox indicator and model small molecule in analytical, biochemical, and chemical research systems.
Does Methylene Blue have a peptide sequence?
No. Methylene Blue is a small molecule, so a peptide sequence does not apply.
Is Methylene Blue intended for human use on this website?
No. The LV product should be explicitly labeled For Research Use Only — Not for Human or Veterinary Use.





