Bisisocrotonic acid 2-methyl-1,3-propanediyl ester
Bisisocrotonic acid 2-methyl-1,3-propanediyl ester ??
??
Bisisocrotonic acid 2-methyl-1,3-propanediyl ester C??? ??, ??, ??
Bisisocrotonic acid 2-methyl-1,3-propanediyl ester ?? ?? ? ???
???
?? ??
Bisisocrotonic acid 2-methyl-1,3-propanediyl ester ?? ??
???( 0)?? ??