Methylene Violet (Methylene Violet Bernthsen)
Name: Methylene Violet (Methylene Violet Bernthsen)
CAS Registry Number: 2516-05-4
CA Index Name: 3H-Phenothiazin-3-one, 7-(dimethylamino)-
Other Names: C.I. 52041; Dimethylthionoline; Methylene Violet; Methylene Violet (biological stain); Methylene Violet Bernthsen; NSC 187694
Merck Index Number: Not listed
Chemical / Dye Class: Phenothiazine
Molecular Formula: C14H12N2OS
Molecular Weight: 256.32
Physical Form: Dark green powder
Solubility: Insoluble in water, soluble in ethanol
Melting Point: 216 °C (decompose)
Boiling Point: 429.6 ± 45.0 °C, pressure: 760 Torr
pKa: 5.08 ± 0.20, most basic, temperature: 25 °C
Absorption (λmax): 580 nm
Synthesis: Synthetic method
Staining Applications: Bacteria; chromosomes; neurons; nuclei; nucleic acids; skin; yeast
Biological Applications: Detecting microorganisms; medical devices
Industrial Applications: Adhesives; liquid crystal displays; recording materials; toners; photographic films
Safety / Toxicity: No data available
Certification / Approval: Certified by Biological Stain Commission (BSC)
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