The 1,3-Propanediol,2-(hydroxymethyl)-2-propyl-, with the CAS registry number 7426-71-3, is also known as Butylidynetrimethanol. Its EINECS registry number is 231-065-5. This chemical's molecular formula is C₇H₁₆O₃ and molecular weight is 148.2001. What's more, both its IUPAC name and systematic name are the same which is 2-(Hydroxymethyl)-2-propylpropane-1,3-diol. 

Physical properties about 1,3-Propanediol,2-(hydroxymethyl)-2-propyl- are: (1)ACD/LogP: -0.32; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.32; (4)ACD/LogD (pH 7.4): -0.32; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 15.92; (8)ACD/KOC (pH 7.4): 15.92; (9)#H bond acceptors: 3; (10)#H bond donors: 3; (11)#Freely Rotating Bonds: 8; (12)Polar Surface Area: 27.69 Å²; (13)Index of Refraction: 1.483; (14)Molar Refractivity: 39.04 cm³; (15)Molar Volume: 136.6 cm³; (16)Polarizability: 15.48×10^-24 cm³; (17)Surface Tension: 46 dyne/cm; (18)Density: 1.084 g/cm³; (19)Flash Point: 151.2 °C; (20)Enthalpy of Vaporization: 63.48 kJ/mol; (21)Boiling Point: 306.8 °C at 760 mmHg; (22)Vapour Pressure: 6.98E-05 mmHg at 25 °C.

You can still convert the following datas into molecular structure:
(1) SMILES: OCC(CCC)(CO)CO
(2) InChI: InChI=1/C7H16O3/c1-2-3-7(4-8,5-9)6-10/h8-10H,2-6H2,1H3
(3) InChIKey: SZSSMFVYZRQGIM-UHFFFAOYAE