thiophen,furan,carboxylic
Furan
198987-63-22(5H)-Furanone,5-methyl-3-[(2R,8S,11S)-2,8,- 11-trihydroxy-11-[(2R,3R,5S)-tetrahydro-3- hydroxy-5-[(1S)-1-hydroxypentadecyl]-2- furanyl]undecyl]-,(5S)-
64021-93-86-deoxy-6-{[methyl(nitroso)carbamoyl]amino}hex-2-ulofuranosyl 6-deoxy-6-{[methyl(nitroso)carbamoyl]amino}hexopyranoside