IUPAC Name: 2,5-bis(2,4,4-trimethylpentan-2-yl)benzene-1,4-diol 
Empirical Formula: C₂₂H₃₈O₂
Molecular Weight: 334.5359g/mol
EINECS: 212-990-3 
Structure of 1,4-Benzenediol,2,5-bis(1,1,3,3-tetramethylbutyl)- (CAS NO.903-19-5):

Index of Refraction: 1.501
Molar Refractivity: 103.78 cm³
Molar Volume: 351.8 cm³
Polarizability: 41.14×10^-24cm³
Surface Tension: 32.7 dyne/cm
Density: 0.95 g/cm³
Flash Point: 181 °C
Enthalpy of Vaporization: 71.46 kJ/mol
Boiling Point: 432.3 °C at 760 mmHg
Vapour Pressure: 4.44E-08 mmHg at 25°C 
Canonical SMILES: CC(C)(C)CC(C)(C)C1=CC(=C(C=C1O)C(C)(C)CC(C)(C)C)O
InChI: InChI=1S/C22H38O2/c1-19(2,3)13-21(7,8)15-11-18(24)16(12-17(15)23)22(9,10)14-20(4,5)6/h11-12,23-24H,13-14H2,1-10H3
InChIKey: CLDZVCMRASJQFO-UHFFFAOYSA-N

Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.

  1,4-Benzenediol,2,5-bis(1,1,3,3-tetramethylbutyl)- , its cas register number is 903-19-5. It also can be called 2,5-Bis(1,1,3,3-tetramethylbutyl)hydroquinone . 1,4-Benzenediol,2,5-bis(1,1,3,3-tetramethylbutyl)- (CAS NO.903-19-5) is irritating to eyes, respiratory system and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.