cis-Parinaric Acid

cis-Parinaric acid is a naturally occurring polyunsaturated fatty acid containing an unusual conjugated (Z,E,E,Z) tetraene. This chromophore provides for a natural fluorescence at 432 nm with an excitation wavelength at 320 nm. cis-Parinaric acid occurs naturally in the seeds of the Makita tree, a tropical rainforest tree indigenous to Fiji. Makita seeds are inedible, and this toxicity may be due at least in part to the unstable conjugated fatty acids, including cis-parinaric acid, contained within the seed. cis-Parinaric acid has been used for the measurement of phospholipase activity, lipase activity, and as an indicator of lipid peroxidation.Formal Name: 9Z,11E,13E,15Z-octadecatetraenoic acid. CAS Number: 18427-44-6. Synonyms: alpha-Parinaric Acid, FA 18:4. Molecular Formula: C18H28O2. Formula Weight: 276.4. Purity: >90%. Formulation: (Request formulation change), A solution in ethanol. Solubility: Benzene: 15 mg/ml, Ether: 15 mg/ml, Hexane: 10 mg/ml. lambdamax: 292, 305, 319 nm. SMILES: CC/C=C\C=C/C=C\C=C\CCCCCCCC(=O)O. InChi Code: InChI=1S/C18H28O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h3-10H,2,11-17H2,1H3,(H,19,20)/b4-3-,6-5+,8-7+,10-9-. InChi Key: IJTNSXPMYKJZPR-ZSCYQOFPSA-N. Side Chain Carbon Sum: 18:4.