Aniline Blue (Methyl Blue)
Name: Aniline Blue (Methyl Blue)
CAS Registry Number: 28983-56-4
CA Index Name: Benzenesulfonic acid, [[4-[bis[4-[(sulfophenyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]amino]-, sodium salt (1: 2)
Other Names: Benzenesulfonic acid, [[4-[bis[4-[(sul-fophenyl)amino]phenyl]methylene]-2,5-cyclohexadien-1- ylidene]amino]-, disodium salt; C.I. Acid Blue 93; C.I. Acid Blue 93, disodium salt; Methyl blue; Acid Blue 93; Acid Blue FG; Acid Ink Blue G; Acid Leather Blue HER; Aniline Blue; Aniline Blue water soluble; Brilliant Lake Blue G; C.I. 42780; Conacid Blue NC; Cotton blue; Dycosacid Ink Blue G; Helvetia Blue; Helvetia Blue I; Helvetia Blue Pure I; Ink Blue; Ink Blue BA; Ink Blue BJT; Ink Blue BJTBN 80; Ink Blue BJTBNA 80; Ink Blue BJTN; Ink Blue G; Ink Blue M; Ink Blue N; Ink Blue Special; Ink Blue WGS; Ink Blue WRS; Methyl blue (biological stain); Orient Soluble Blue OBB; Orient Soluble Blue OBC; Orient Soluble Blue OBX; Poirriers Blue; Pure Soluble Blue I; Silk Blue H; Sky Blue G; Solar Soluble Blue BN; Soluble Blue; Soluble Blue 8B; Soluble Blue OBB; Soluble Blue OBX; Special Soluble Blue HT; Vicoacid Ink Blue; Water Blue; Water Blue 6B; Water Blue B; Water Blue I Old Type 1240a; Water Blue IN
Merck Index Number: 6028
Chemical / Dye Class: Triphenylmethane
Molecular Formula: C37H27N3Na2O9S3
Molecular Weight: 799.80
Physical Form: Dark blue or dark brown powder
Solubility: Soluble in water, ethanol; insoluble in xylene
Melting Point: > 250 °C
Absorption (λmax): 600 nm
Synthesis: Synthetic methods
Staining Applications: Cartilage; chitin; hyaline droplets; louse eggs; mitochondria; proteins; sphagnum moss; urine sediment
Biological Applications: Assay for nucleic acids, protein determination, identification of Candida albicans; method for counting leukocytes, controlled drug release; radiotherapy; treating apolipoprotein E-related diseases; oral care products
Industrial Applications: Color filter; magnetic toners; inks; highlighters; colored pencils; packaging materials; paints; textiles; asbestos content measurement; paper products
Safety / Toxicity: Mutagenicity
Certification / Approval: Certified by Biological Stain Commission (BSC)
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