Oleic acid is a fatty acid that occurs naturally in various animal and vegetable fats and oils. It is an odorless, colorless oil, although commercial samples may be yellowish. In chemical terms, oleic acid is classified as a monounsaturated omega-9 fatty acid, abbreviated with a lipid number of 18:1 cis-9. Code Description C18:0&Lower C18:1 C18:2 OA-7075 Vegetable Base C18:1(75%) 75min 13max 1max OA-7070 Vegetable Base C18:1(70%) 70min 19max 5max OA-7275 Tallow Base C18:1(75%) 75min 10max 5max OA-7270 Tallow Base C18:1(70%) 70min 18max 5max