Uses of phloroglucinol dihydrate:   

*Amino-substituted benzene used in dye production. Potential applications in cancer biomarker-sensitive immunosensors.  

*Pure colorless monoclinic crystal; industrial-grade brown-yellow crystal or sand-brown solid. Used in dye manufacturing, photography, organic synthesis.

*The reaction of air and water is easily soluble in water. Toxic by skin absorption, inhalation or ingestion. Even solids will find brown areas downwind.

*Reactivity curve o-phenylenediamine is a weakly aromatic amine that neutralizes acid to form a salt in an exothermic reaction. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, acid anhydrides and acid halides. It will turn black when exposed to air.