The 2,2'-((4-((4-Aminophenyl)azo)phenyl)imino)bisethanol is an organic compound with the formula C16H20N4O2. The IUPAC name of this product is 2-[4-[(4-aminophenyl)diazenyl]-N-(2-hydroxyethyl)anilino]ethanol . With the CAS registry number 20721-50-0, it is also named as Disperse black 9 ; Ethanol, 2,2'-((4-((4-aminophenyl)azo)phenyl)imino)bis- ; Ethanol, 2,2'-((4-(2-(4-aminophenyl)diazenyl)phenyl)imino)bis- .

The 2,2'-((4-((4-Aminophenyl)azo)phenyl)imino)bisethanol is used as hair dye ingredients. It is irritating to eyes, respiratory system and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable protective clothing.

The other characteristics of this product can be summarized as: (1)ACD/LogP: 2.50 ; (2)# of Rule of 5 Violations: 0 ; (3)ACD/LogD (pH 5.5): 2.49 ; (4)ACD/LogD (pH 7.4): 2.5 ; (5)ACD/BCF (pH 5.5): 45.91 ; (6)ACD/BCF (pH 7.4): 46.8 ; (7)ACD/KOC (pH 5.5): 535.59 ; (8)ACD/KOC (pH 7.4): 545.94 ; (9)#H bond acceptors: 6 ; (10)#H bond donors: 4 ; (11)#Freely Rotating Bonds: 10 ; (12)Index of Refraction: 1.61 ; (13)Molar Refractivity: 84.86 cm³ ; (14)Molar Volume: 244.7 cm³ ; (15)Polarizability: 33.64×10^-24 cm³ ; (16)Surface Tension: 51.2 dyne/cm ; (17)Enthalpy of Vaporization: 89.85 kJ/mol ; (18)Vapour Pressure: 8.51E-14 mmHg at 25°C ; (19)Rotatable Bond Count: 7 ; (20)Tautomer Count: 2 ; (21)Exact Mass: 300.158626 ; (22)MonoIsotopic Mass: 300.158626 ; (23)Topological Polar Surface Area: 94.4 ; (24)Heavy Atom Count: 22.

People can use the following data to convert to the molecule structure. SMILES: OCCN(c2ccc(/N=N/c1ccc(N)cc1)cc2)CCO; InChI: InChI=1/C16H20N4O2/c17-13-1-3-14(4-2-13)18-19-15-5-7-16(8-6-15)20(9-11-21)10-12-22/h1-8,21-22H,9-12,17H2/b19-18+.