2H,5aH-Bisoxireno(e,h)-1-benzopyran-6(6aH)-one, tetrahydro-3-(acetyloxy)-2,2-dimethyl-6a-(3-methyl-3-buten-1-ynyl)-, (3-alpha,4ar*,5a-alpha,6a-alpha,7a-alpha,7b-beta)-, (-)- 88205-90-7 BRN 4565790 Oxirapentyn