This chemical is called 2H-1,5-Benzodioxepin, 3,4-dihydro-, and its systematic name is 3,4-Dihydro-2H-1,5-benzodioxepine. With the molecular formula of C₉H₁₀O₂, its molecular weight is 150.17. The CAS registry number of this chemical is 7216-18-4. Additionally, it should be stored in the cool and dry place.

Other characteristics of the 2H-1,5-Benzodioxepin, 3,4-dihydro- can be summarised as followings: (1)ACD/LogP: 2.16; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.163; (4)ACD/LogD (pH 7.4): 2.163; (5)ACD/BCF (pH 5.5): 25.949; (6)ACD/BCF (pH 7.4): 25.949; (7)ACD/KOC (pH 5.5): 357.966; (8)ACD/KOC (pH 7.4): 357.966; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 18.46 Å²; (13)Index of Refraction: 1.524; (14)Molar Refractivity: 41.638 cm³; (15)Molar Volume: 136.088 cm³; (16)Polarizability: 16.506×10^-24cm³; (17)Surface Tension: 40.222 dyne/cm; (18)Density: 1.103 g/cm³; (19)Flash Point: 91.549 °C; (20)Enthalpy of Vaporization: 43.883 kJ/mol; (21)Boiling Point: 221.011 °C at 760 mmHg; (22)Vapour Pressure: 0.163 mmHg at 25°C.  

You can still convert the following datas into molecular structure: 
1.SMILES: c1ccc2c(c1)OCCCO2
2.InChI: InChI=1/C9H10O2/c1-2-5-9-8(4-1)10-6-3-7-11-9/h1-2,4-5H,3,6-7H2
3.InChIKey: CBXMULHQEVXJDI-UHFFFAOYAL

The toxicity data is as follows: