3,7,12-trihydroxycholestan-26,27-dioic acid
3,7,12-trihydroxycholestan-26,27-dioic acid ??
??
3,7,12-trihydroxycholestan-26,27-dioic acid C??? ??, ??, ??
3,7,12-trihydroxycholestan-26,27-dioic acid ?? ?? ? ???
???
?? ??
3,7,12-trihydroxycholestan-26,27-dioic acid ?? ??
???( 0)?? ??