4,6-Bis(5-hydroxy-2,4-dioxapentan-1-yl)isophthalic acid
4,6-Bis(5-hydroxy-2,4-dioxapentan-1-yl)isophthalic acid ??
??
4,6-Bis(5-hydroxy-2,4-dioxapentan-1-yl)isophthalic acid C??? ??, ??, ??
4,6-Bis(5-hydroxy-2,4-dioxapentan-1-yl)isophthalic acid ?? ?? ? ???
???
?? ??
4,6-Bis(5-hydroxy-2,4-dioxapentan-1-yl)isophthalic acid ?? ??
???( 0)?? ??