[EN300-331985-0.05g] rac-(1R,5S)-4-oxaspiro[bicyclo[3.2.0]heptane-6,1'-cyclobutane]-7-one 402,636원
[EN300-331985-0.1g] rac-(1R,5S)-4-oxaspiro[bicyclo[3.2.0]heptane-6,1'-cyclobutane]-7-one 568,909원
[EN300-331985-0.25g] rac-(1R,5S)-4-oxaspiro[bicyclo[3.2.0]heptane-6,1'-cyclobutane]-7-one 786,727원
[EN300-331985-0.5g] rac-(1R,5S)-4-oxaspiro[bicyclo[3.2.0]heptane-6,1'-cyclobutane]-7-one 1,206,545원
[EN300-331985-1g] rac-(1R,5S)-4-oxaspiro[bicyclo[3.2.0]heptane-6,1'-cyclobutane]-7-one 1,531,182원
[EN300-331985-2.5g] rac-(1R,5S)-4-oxaspiro[bicyclo[3.2.0]heptane-6,1'-cyclobutane]-7-one 2,938,909원
[EN300-331985-5g] rac-(1R,5S)-4-oxaspiro[bicyclo[3.2.0]heptane-6,1'-cyclobutane]-7-one 4,321,000원
[EN300-331985-10g] rac-(1R,5S)-4-oxaspiro[bicyclo[3.2.0]heptane-6,1'-cyclobutane]-7-one 6,378,182원