The Benzeneacetic acid, a-hydroxy-a-methyl-, with the CAS registry number 515-30-0 and EINECS registry number 208-196-1, has the systematic name of 2-hydroxy-2-phenylpropanoic acid. And the molecular formula of this chemical is C₉H₁₀O₃. In addition, while dealing with this white crystals, you should not breathe dust and then try to avoid contacting with skin and eyes.

The physical properties of Benzeneacetic acid, a-hydroxy-a-methyl- are as following: (1)ACD/LogP: 1.27; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -1.16; (4)ACD/LogD (pH 7.4): -2.38; (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; (9)#H bond acceptors: 3; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 35.53 Å²; (13)Index of Refraction: 1.568; (14)Molar Refractivity: 43.1 cm³; (15)Molar Volume: 131.7 cm³; (16)Polarizability: 17.08×10^-24cm³; (17)Surface Tension: 52.1 dyne/cm; (18)Density: 1.261 g/cm³; (19)Flash Point: 165.9 °C; (20)Enthalpy of Vaporization: 60.12 kJ/mol; (21)Boiling Point: 327.2 °C at 760 mmHg; (22)Vapour Pressure: 8.3E-05 mmHg at 25°C. 

Uses of Benzeneacetic acid, a-hydroxy-a-methyl-: It can react with ethanol to produce 2-hydroxy-2-phenyl-propionic acid ethyl ester. This reaction will need reagent HCl (gas)with heating. And the yield is about 83%. 

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(O)C(O)(c1ccccc1)C
(2)InChI: InChI=1/C9H10O3/c1-9(12,8(10)11)7-5-3-2-4-6-7/h2-6,12H,1H3,(H,10,11)
(3)InChIKey: NWCHELUCVWSRRS-UHFFFAOYAX