The 9-Octadecenoic acid(9Z)-, 1,1'-anhydride, with the CAS registry number 24909-72-6 and EINECS registry number 246-522-4, has the systematic name (9Z)-octadec-9-enoic anhydride. And the molecular formula of this chemical is C₃₆H₆₆O₃. In addition, it is a kind of clear yellow to orange oily liquid, and should be stored at -20°C.

The physical properties of 9-Octadecenoic acid(9Z)-, 1,1'-anhydride are as following: (1)ACD/LogP: 15.48; (2)# of Rule of 5 Violations: 2; (3)#H bond acceptors: 3; (4)#H bond donors: 0; (5)#Freely Rotating Bonds: 32; (6)Polar Surface Area: 43.37 Å²; (7)Index of Refraction: 1.471; (8)Molar Refractivity: 170.75 cm³; (9)Molar Volume: 610.6 cm³; (10)Polarizability: 67.69×10^-24cm³; (11)Surface Tension: 33.4 dyne/cm; (12)Density: 0.895 g/cm³; (13)Flash Point: 275.4 °C; (14)Enthalpy of Vaporization: 90.52 kJ/mol; (15)Boiling Point: 609.4 °C at 760 mmHg; (16)Vapour Pressure: 8.57E-15 mmHg at 25°C.

Preparation of 9-Octadecenoic acid(9Z)-, 1,1'-anhydride: It can be prepared by octadec-9-enoic acid. This reaction will need reagents 2-chloro-1,3-dimethylimidazolinium chloride and Et₃N, and the solvent CH₂Cl₂. The reaction time is 43 hours with temperature of 20°C, and the yield is about 57%.

You should be cautious while dealing with this chemical. It irritates eyes, respiratory system and skin. Therefore, you had better take the following instructions: Wear suitable protective clothing, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(OC(=O)CCCCCCC\C=C/CCCCCCCC)CCCCCCC\C=C/CCCCCCCC
(2)InChI: InChI=1/C36H66O3/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-35(37)39-36(38)34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h17-20H,3-16,21-34H2,1-2H3/b19-17-,20-18-
(3)InChIKey: OCNZHGHKKQOQCZ-CLFAGFIQBM