The Etonitazene, with CAS registry number 911-65-9, has the systematic name of 2-[2-(4-ethoxybenzyl)-5-nitro-1H-benzimidazol-1-yl]-N,N-diethylethanamine. Besides this, it is also called 1-(2-(Diethylamino)ethyl)-2-(p-ethoxybenzyl)-5-nitrobenzimidazole. Its classification code is Drug / Therapeutic Agent. And the chemical formula of this chemical is C₂₂H₂₈N₄O₃. What's more, its EINECS is 213-009-1. This chemical has a strong dependency potential similar to that of morphine, and a strong tendency to produce respiratory depression, and is therefore not used in humans. It is however useful in addiction studies on animals. It is often used in studies requiring the animals to drink or ingest the opiate because it is not as bitter as the opiate salts, i.e., morphine sulfate.

Physical properties of Etonitazene: (1)ACD/LogP: 5.16; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 2.08; (4)ACD/LogD (pH 7.4): 2.8; (5)ACD/BCF (pH 5.5): 4.08; (6)ACD/BCF (pH 7.4): 21.3; (7)ACD/KOC (pH 5.5): 12.7; (8)ACD/KOC (pH 7.4): 66.25; (9)#H bond acceptors: 7; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 10; (12)Polar Surface Area: 76.11 Å²; (13)Index of Refraction: 1.591; (14)Molar Refractivity: 113.75 cm³; (15)Molar Volume: 336.5 cm³; (16)Polarizability: 45.09×10^-24cm³; (17)Surface Tension: 44.5 dyne/cm; (18)Density: 1.17 g/cm³; (19)Flash Point: 305 °C; (20)Enthalpy of Vaporization: 86.85 kJ/mol; (21)Boiling Point: 580.7 °C at 760 mmHg; (22)Vapour Pressure: 1.78E-13 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: [O-][N+](=O)c3ccc1c(nc(n1CCN(CC)CC)Cc2ccc(OCC)cc2)c3
(2)InChI: InChI=1/C22H28N4O3/c1-4-24(5-2)13-14-25-21-12-9-18(26(27)28)16-20(21)23-22(25)15-17-7-10-19(11-8-17)29-6-3/h7-12,16H,4-6,13-15H2,1-3H3
(3)InChIKey: PXDBZSCGSQSKST-UHFFFAOYAN
(4)Std. InChI: InChI=1S/C22H28N4O3/c1-4-24(5-2)13-14-25-21-12-9-18(26(27)28)16-20(21)23-22(25)15-17-7-10-19(11-8-17)29-6-3/h7-12,16H,4-6,13-15H2,1-3H3
(5)Std. InChIKey: PXDBZSCGSQSKST-UHFFFAOYSA-N

The toxicity data is as follows: