Molecular formula :
nature : Salt Fund formerly yellow, or yellow base. Reddish-brown crystalline powder with green or black massive shiny crystals. Melting point 118-118.5 ° C Dissolved in water was yellowish orange. Soluble ethanol. Micro-soluble acetone. Insoluble benzene. For dyeing silk, linen, wool, paper pulp, tobacco, leather, and the system for the color of amylin. Aniline by diazotization, with the coupling between phenylenediamine and prepared.
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