The (R)-(-)-1-Phenyl-1,2-ethanediol 2-tosylate, with the CAS registry number 40434-87-5 and EINECS registry number 254-918-3, has the systematic name of (2R)-2-hydroxy-2-phenylethyl 4-methylbenzenesulfonate. And the molecular formula of this chemical is C₁₅H₁₆O₄S. What's more, while dealing with this chemical, you should not breathe dust and then try to avoid contacting with skin and eyes.

The physical properties of (R)-(-)-1-Phenyl-1,2-ethanediol 2-tosylate are as followings: (1)ACD/LogP: 2.51; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.51; (4)ACD/LogD (pH 7.4): 2.51; (5)ACD/BCF (pH 5.5): 47.61; (6)ACD/BCF (pH 7.4): 47.61; (7)ACD/KOC (pH 5.5): 552.7; (8)ACD/KOC (pH 7.4): 552.7; (9)#H bond acceptors: 4; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 6; (12)Polar Surface Area: 60.98 Å²; (13)Index of Refraction: 1.59; (14)Molar Refractivity: 77.41 cm³; (15)Molar Volume: 229.3 cm³; (16)Polarizability: 30.69×10^-24cm³; (17)Surface Tension: 50.3 dyne/cm; (18)Density: 1.274 g/cm³; (19)Flash Point: 244.5 °C; (20)Enthalpy of Vaporization: 78.49 kJ/mol; (21)Boiling Point: 480.6 °C at 760 mmHg; (22)Vapour Pressure: 4.77E-10 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=S(=O)(OCC(O)c1ccccc1)c2ccc(cc2)C
(2)InChI: InChI=1/C15H16O4S/c1-12-7-9-14(10-8-12)20(17,18)19-11-15(16)13-5-3-2-4-6-13/h2-10,15-16H,11H2,1H3
(3)InChIKey: IOTJIFRGXYQHAQ-UHFFFAOYAD