Methylene blue indicator (C16H18ClN3S.xH2O).
Basic substance: minimum 96%.
Soluble in water, alcohol, acetic acid, glycerin and chloroform. Insoluble in ether.
Melting point: 180o.
lambda-max (UV-Vis): 662-666nm (H2O).
Hazard warnings:
- H302;
- P264-P270-P301 + P312 + P330-P501.