3,12-Epoxy-12H-pyrano(4,3-j)-1,2-benzodioxepin, 10-ethoxydecahydro-3,6,9-trimethyl-, (3S-(3alpha,5alpha,6alpha,8aalpha,9beta,10beta,12beta,12aalpha))- 3,12-Epoxy-12H-pyrano(4,3-j)-1,2-benzodioxepin, decahydro-10-ethoxy-3,6,9-trimethyl-, (3R-(3alpha,5abeta,6beta,8abeta,9alpha,10alpha,12beta,12aR*))- 75887-54-6 Areether Arteether SM 227