[EN300-372703-0.05g] 3',4'-dihydrospiro[cyclobutane-1,2'-pyrano[2,3-b]pyridine]-4'-one 590,636원
[EN300-372703-0.1g] 3',4'-dihydrospiro[cyclobutane-1,2'-pyrano[2,3-b]pyridine]-4'-one 852,000원
[EN300-372703-0.25g] 3',4'-dihydrospiro[cyclobutane-1,2'-pyrano[2,3-b]pyridine]-4'-one 1,192,636원
[EN300-372703-0.5g] 3',4'-dihydrospiro[cyclobutane-1,2'-pyrano[2,3-b]pyridine]-4'-one 1,846,000원
[EN300-372703-1g] 3',4'-dihydrospiro[cyclobutane-1,2'-pyrano[2,3-b]pyridine]-4'-one 2,350,909원
[EN300-372703-2.5g] 3',4'-dihydrospiro[cyclobutane-1,2'-pyrano[2,3-b]pyridine]-4'-one 4,550,636원
[EN300-372703-5g] 3',4'-dihydrospiro[cyclobutane-1,2'-pyrano[2,3-b]pyridine]-4'-one 6,703,000원
[EN300-372703-10g] 3',4'-dihydrospiro[cyclobutane-1,2'-pyrano[2,3-b]pyridine]-4'-one 9,908,545원