(3S-(3alpha,3aalpha,4alpha,9alpha,9aalpha,9bbeta))-3a,4,5,9,9a,9b-Hexahydro-9-hydroxy-3,6,9-trimethyl-2-oxoazuleno(4,5-b)-3H-furan-4-yl acetate 29041-35-8 EINECS 249-384-3 Matricin