1,5,5-trimethylspiro[5.5]undeca-7,10-diene-2,9-dione

4-(5-chloro-2-methyl-5-oxopentan-2-yl)phenyl acetate

2-diazonio-6-(4-hydroxyphenyl)-6-methylhept-2-en-3-olate

2,2,6,9-tetramethylspiro[5.5]undec-5-en-9-ol

BETA-二氢紫罗兰酮