... *,4s*),8abeta]]-2-methylbutanoicacid1,2,;1,2,6,7,8,8a-hexahydro-beta,delta-dihydroxy-2,6-dimethyl-8-(2-methyl-1-oxobuty;2-methyl-,1,2,3,7 ... ,8,8a-hexahydro-3,7-dimethyl-8-(2-(tetrahydro-butanoicaci ... Reference) EPA Substance Registry System Butanoic acid, 2-methyl-, (1S,3R,7S,8S,8aR)-1,2,3,7, 8,8a-hexahydro-3,7 ...