Molecular formula: C6H3N2O5Na Physics and chemical property: Sodium 2, 4-dinitrophenate yellow crystal, special gravity 1.683( 24 ) , melts at 114-115 , It is faint soluble in water, soluble in organic solvents, such as ethylalcohol, diethyl and benzene. Application: 1. To be used as plant-growth regulator; 2. To be used as intermediate Chemicals.