1-Naphthaleneacetic acid, decahydro-2-hydroxy-2,5,5,8a-tetramethyl-, gamma-lactone 1216-84-8 Decahydro-3a,6,6,9a-tetramethylnaphtho(2,1-b)furan-2(1H)-one EINECS 214-933-8 Naphtho(2,1-b)furan-2(1H)-one, decahydro-3a,6,6,9a-tetramethyl-