2,4-Dodecadienoic acid, 3,7,11-trimethyl-, 2-propynyl ester 2-Propynyl 3,7,11-trimethyl-2,4-dodecadienoate 37882-31-8 DODECA-2,4-DIENOIC ACID, 3,7,11-TRIMETHYL-, 2-PROPYNYL ESTER, (2E,4E)- Kinopren ZR 777 ZR-777 ZR-777 5E