({[(3E,6bS,9aR)-11-methoxy-4-oxo-1,4,6b,7,8,9a-hexahydrocyclopenta[c]furo[3',2':4,5]furo[2,3-g]chromen-3(2H)-ylidene]amino}oxy)acetic acid
CAS No. 118920-31-3