The 4-Nitrophthalhydrazide with the CAS number 3682-19-7 is also called 1(2H)-Phthalazinone,4-hydroxy-7-nitro-. Both the systematic name and IUPAC name are 6-nitro-2,3-dihydrophthalazine-1,4-dione. Its molecular formula is C₈H₅N₃O₄. This chemical is light yellow powder.

The properties of the 4-Nitrophthalhydrazide are: (1)ACD/LogP: 0.30; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.3; (4)ACD/LogD (pH 7.4): 0.29; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 34.82; (8)ACD/KOC (pH 7.4): 33.85; (9)#H bond acceptors: 7; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 86.44 Å²; (13)Index of Refraction: 1.628; (14)Molar Refractivity: 47.31 cm³; (15)Molar Volume: 133.1 cm³; (16)Polarizability: 18.75×10^-24cm³; (17)Surface Tension: 63.8 dyne/cm; (18)Enthalpy of Vaporization: 96.16 kJ/mol; (19)Vapour Pressure: 2.65×10^-16 mmHg at 25°C.

Uses: This chemical can react with anthracene to prepare C₂₂H₁₃N₃O₄. This reaction needs reagent lead tetra-acetate and solvent CH₂Cl₂ at ambient temperature. The reaction time is 4.0 hours. The yield is 85%.

You can still convert the following datas into molecular structure:
(1)SMILES: [O-][N+](=O)c2ccc1c(C(=O)NNC1=O)c2
(2)InChI: InChI=1/C8H5N3O4/c12-7-5-2-1-4(11(14)15)3-6(5)8(13)10-9-7/h1-3H,(H,9,12)(H,10,13)
(3)InChIKey: XQFIOLKLHNOFCA-UHFFFAOYAU