Mapping error in S74 PFOS / FOSAA Transformations
The image currently displayed for FOSAA is certainly not the correct predecessor...
https://pubchem.ncbi.nlm.nih.gov/compound/74483#section=Transformations
This does not appear on the other page: https://pubchem.ncbi.nlm.nih.gov/compound/1050701#section=Transformations