The 9-Octadecenoic acid(9Z)-, ethenyl ester, with the CAS registry number 3896-58-0, has the systematic name of ethenyl (9Z)-octadec-9-enoate. And the molecular formula of this chemical is C₂₀H₃₆O₂. It is a kind of organics, and should be stored at dry and cool environment.

The physical properties of 9-Octadecenoic acid(9Z)-, ethenyl ester are as following: (1)ACD/LogP: 8.71; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 8.71; (4)ACD/LogD (pH 7.4): 8.71; (5)ACD/BCF (pH 5.5): 1000000; (6)ACD/BCF (pH 7.4): 1000000; (7)ACD/KOC (pH 5.5): 1309323.13; (8)ACD/KOC (pH 7.4): 1309323.13; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 17; (12)Polar Surface Area: 26.3 Å²; (13)Index of Refraction: 1.46; (14)Molar Refractivity: 96.26 cm³; (15)Molar Volume: 350.8 cm³; (16)Polarizability: 38.16×10^-24cm³; (17)Surface Tension: 31.1 dyne/cm; (18)Density: 0.879 g/cm³; (19)Flash Point: 141.5 °C; (20)Enthalpy of Vaporization: 64.28 kJ/mol; (21)Boiling Point: 393 °C at 760 mmHg; (22)Vapour Pressure: 2.21E-06 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(O\C=C)CCCCCCC\C=C/CCCCCCCC
(2)InChI: InChI=1/C20H36O2/c1-3-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(21)22-4-2/h4,11-12H,2-3,5-10,13-19H2,1H3/b12-11-
(3)InChIKey: LPUZTLKYAOOFDX-QXMHVHEDBN