Synonyms: Naphth[2,1,8-cde]azulene-3,5-diol,2,2a,3,4,4a,5,6,7,7a,8,10b,10c-dodecahydro-2a,7,10,10c-tetramethyl-, diacetate,(2aS,3S,4aR,5S,7S,7aR,10bR,10cR)- (9CI); Naphth[2,1,8-cde]azulene-3,5-diol,2,2a,3,4,4a,5,6,7,7a,8,10b,10c-dodecahydro-2a,7,10,10c-tetramethyl-, diacetate,[2aS-(2aa,3a,4ab,5a,7b,7ab,10ba,10ca)]-; Kempene 1; Kempene I; NK 1; NK 1 (terpene)