This carboxylic acid, also known as cis-9-Octadecenoic Acid, presents as a colorless to yellow liquid. It is known to be soluble in many organic solvents and miscible in methanol, acetone and carbon tetrachloride. It is also insoluble in water. For best results, keep container tightly closed. Store in a refrigerator, under inert gas - this substance is heat sensitive, air sensitive and light sensitive. (Z)-9-Octadecenoic Acid is incompatible with oxidizing agents and strong bases. This chemical causes skin irritation and eye irritation.