Molekula
Methylene blue (C.I. 52015)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Certificate of Analysis with every batch
Methylene blue (C.I. 52015) is a synthetic heterocyclic aromatic compound used primarily as a dye, redox indicator, and medical stain in biological and chemical applications. It also functions as an antioxidant, antimicrobial agent, and in photodynamic therapy. This chemical has a CAS number of 61-73-4, with the molecular formula C16H18ClN3S and a molecular weight of 319.85. It is stored at ambient conditions and carries a signal word of Warning for safety classification. Molekula supplies Methylene blue from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.
Overview
- SKU
- 90035307
- CAS Number
- 61-73-4
- IUPAC Name
- [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium chloride
- EC Number
- 200-515-2
- Molecular Formula
- C16H18ClN3S
- Molecular Weight
- 319.85
- Exact Mass
- 319.091
- SMILES
- CN(C)C1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.[Cl-]
- InChIKey
- CXKWCBBOMKCUKX-UHFFFAOYSA-M
- InChI
- InChI=1S/C16H18N3S.ClH/c1-18(2)11-5-7-13-15(9-11)20-16-10-12(19(3)4)6-8-14(16)17-13;/h5-10H,1-4H3;1H/q+1;/p-1
- PubChem CID
- 6099
Synonyms
- Basic blue 9
- C.I. Basic Blue 9
- Chromosmon
- methylene blue
- Methylene Blue anhydrous
- Methylene Blue BB
- Methylene Blue N
- Methylthioninium chloride
- Solvent blue 8
- Swiss Blue
Literature values
Published physical properties of the substance, not batch specifications.
- Odour
- Slight odor
- Melting Point
- 100 to 110 °C (with decomposition)
- Water Solubility
- Soluble in water
- Solubility (other solvents)
- Soluble in ethanol, chloroform; slightly soluble in pyridine; insoluble in ethyl ether
- Vapour Pressure
- 0.00000013 mmHg
Source: PubChem CID 6099 (HSDB, DrugBank, Haz-Map)
See all 5 other grades of CAS 61-73-4 →
Frequently asked questions
What is methylene blue primarily used for?
Methylene blue is commonly used as a dye in histology and microscopy, a redox indicator in laboratories, and therapeutically for methemoglobinemia treatment.
What is the chemical formula and molecular weight of methylene blue?
The chemical formula is C₁₆H₁₈ClN₃S, and the molecular weight is 319.85 g/mol.
How should methylene blue be stored?
Store methylene blue at ambient temperature in a tightly sealed container, away from light and moisture.
What grades of methylene blue does Molekula supply?
Molekula supplies analytical grade methylene blue, suitable for laboratory and research applications.
Can Molekula supply methylene blue in bulk quantities?
Yes, we offer bulk quantities of methylene blue upon request—please contact us for pricing and availability.
What documentation is provided with a methylene blue order?
Each order includes a Certificate of Analysis (CoA), Safety Data Sheet (SDS), and batch-specific documentation for traceability.
Related products
Molekula has supplied fine chemicals and biochemicals since 1999, and its facilities are ISO 9001:2015 and ISO 14001:2015 certified. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.