cas no:80621-81-4||chemical formula:c43h51n3o11||(2s,16z,18e,20s,21s,22r,23r,24r,25s,26r,27s,28e)5,6,21,23-tetrahydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamet……
cas no:1210022-90-4||chemical formula:c43h51n3o12||molecular weight:801.8900||exact mass:801.34727||(2s,16z,18e,20s,21s,22r,23r,24r,25s,26r,27s,28e)-5,6,21,23-t……