Reported in EPA TSCA Inventory.

The CAS registry number of Linoleic acid is 60-33-3. With the EINECS registry number 200-470-9, its systematic name is (9Z,12Z)-octadeca-9,12-dienoic acid. It is a colorless liquid at room temperature. And it belongs to one of the two families of essential fatty acids that humans and other animals must ingest for good health. In addition, it is used in making soaps, emulsifiers, and quick-drying oils. Besides, it has become increasingly popular in the beauty products industry because of its beneficial properties on the skin.

Physical properties about this chemical are: (1)ACD/LogP: 7.02; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 6.219; (4)ACD/LogD (pH 7.4): 4.424; (5)ACD/BCF (pH 5.5): 20180.996; (6)ACD/BCF (pH 7.4): 323.607; (7)ACD/KOC (pH 5.5): 24903.602; (8)ACD/KOC (pH 7.4): 399.335; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 14; (12)Polar Surface Area: 37.3 Å²; (13)Index of Refraction: 1.478; (14)Molar Refractivity: 87.121 cm³; (15)Molar Volume: 307.512 cm³; (16)Polarizability: 34.537 ×10^-24cm³; (17)Surface Tension: 34.355 dyne/cm; (18)Density: 0.912 g/cm³; (19)Flash Point: 272.976 °C; (20)Enthalpy of Vaporization: 66.597 kJ/mol; (21)Boiling Point: 360.552 °C at 760 mmHg.

Preparation of Linoleic acid: it can be prepared by octadeca-9c,12c-dienenitrile. This reaction will need reagent NaOH and solvents ethanol and H₂O. The yield is about 81% by heating.

Uses of Linoleic acid: it can be used to get octadecanoic acid. This reaction will need reagent H₂, catalyst Rhodium chloride tri(triphenylphosphine-meta-trisulfonate) and solvent H₂O. The reaction time is 18 hours with ambient temperature. The yield is about 95%.

When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes. During using it, wear suitable protective clothing and avoid contact with skin and eyes. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: CCCCC/C=C\C/C=C\CCCCCCCC(=O)O
(2)Std. InChI: InChI=1S/C18H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h6-7,9-10H,2-5,8,11-17H2,1H3,(H,19,20)/b7-6-,10-9-
(3)Std. InChIKey: OYHQOLUKZRVURQ-HZJYTTRNSA-N

The toxicity data is as follows: