1635-33-2 2,6-Heptadienoic acid, 5-hydroxy-3-methoxy-7-phenyl-, delta-lactone 2H-Pyran-2-one, 5,6-dihydro-4-methoxy-6-(2-phenylethenyl)- 2H-Pyran-2-one, 5,6-dihydro-4-methoxy-6-styryl- 40610-16-0 Cavain Neuronica kavain