The Apraclonidine, with the CAS registry number 66711-21-5, has the systematic name of 2,6-dichloro-N1-(4,5-dihydro-1H-imidazol-2-yl)benzene-1,4-diamine. It should be stored at 2-8°C. And the molecular formula of the chemical is C₉H₁₀Cl₂N₄.

The characteristics of Apraclonidine are as followings: (1)ACD/LogP: 0.30; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -1.69; (4)ACD/LogD (pH 7.4): -1.12; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1.31; (9)#H bond acceptors: 4; (10)#H bond donors: 4; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 22.08 Å²; (13)Index of Refraction: 1.719; (14)Molar Refractivity: 59.19 cm³; (15)Molar Volume: 150 cm³; (16)Polarizability: 23.46×10^-24cm³; (17)Surface Tension: 59.3 dyne/cm; (18)Density: 1.63 g/cm³; (19)Flash Point: 193 °C; (20)Enthalpy of Vaporization: 64.57 kJ/mol; (21)Boiling Point: 395.5 °C at 760 mmHg; (22)Vapour Pressure: 1.83E-06 mmHg at 25°C.  

You should be cautious while dealing with this chemical. It is toxic by inhalation, in contact with skin and if swallowed. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection to avoid breathing dust, and if in case of accident or if you feel unwell, seek medical advice immediately (show label where possible).

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: Clc1c(c(Cl)cc(N)c1)N/C2=N/CCN2
(2)InChI: InChI=1/C9H10Cl2N4/c10-6-3-5(12)4-7(11)8(6)15-9-13-1-2-14-9/h3-4H,1-2,12H2,(H2,13,14,15)
(3)InChIKey: IEJXVRYNEISIKR-UHFFFAOYAL