Toluidine blue solution is used in testing for lignin, a complex organic molecule that bonds to cellulose fibres and strengthens and hardens the cell walls in plants. A positive toluidine blue test causes the solution to turn from blue to pink. A similar test can be performed with phloroglucinol-HCl solution, which turns red.
Toluidine Blue O C.I. 52040
£5.72 – £54.00
Toluidine Blue, also known as TBO or Tolonium Chloride (INN) is a blue cationic (basic) dye used in histology and sometimes clinically.
Dye Content: >80%
Molecular Formula: C15H16ClN3S
Molecular Weight: 305.83 g/mol
Melting Point: 156-158 °C(lit.)
Absorptivity (1%/1cm): >1200 Loss on drying: <8.0%
Solubility (0.1% dist. Water): Clear blue solution
Hazard Phrases: Not considered harmful under normal laboratory conditions
HS CODE: 32041329
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