The Phenol,4-[(2-nitrophenyl)amino]-, also known as HC Orange no. 1, is an organic compound with the formula C₁₂H₁₀N₂O₃. Its EINECS registry number is 259-132-4. With the CAS registry number 54381-08-7, its IUPAC name is 4-(2-nitroanilino)phenol. It is an orange crystal powder.

Physical properties of Phenol,4-[(2-nitrophenyl)amino]-: (1)ACD/LogP: 3.25; (2)#H bond acceptors: 5; (3)#H bond donors: 2; (4)#Freely Rotating Bonds: 4; (5)Index of Refraction: 1.699; (6)Molar Refractivity: 64.05 cm³; (7)Molar Volume: 165.7 cm³; (8)Surface Tension: 65.2 dyne/cm; (9)Density: 1.388 g/cm³; (10)Flash Point: 186.6 °C; (11)Enthalpy of Vaporization: 65.84 kJ/mol; (12)Boiling Point: 384.9 °C at 760 mmHg; (13)Vapour Pressure: 1.79E-06 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: C1=CC=C(C(=C1)NC2=CC=C(C=C2)O)[N+](=O)[O-]
(2)InChI: InChI=1S/C12H10N2O3/c15-10-7-5-9(6-8-10)13-11-3-1-2-4-12(11)14(16)17/h1-8,13,15H
(3)InChIKey: HSDSBIUUVWRHTM-UHFFFAOYSA-N

The toxicity data is as follows: