Alkylsulfonic acid derivative > Aldehyde + Sulfurous acid
[H][#6:8](-[$([#1,*]):2])[S:3]([#8:6])(=[O:4])=[O:5]>>[#6:8](-[$([#1,*]):2])=O.[#8:6][S:3]([#8:4])=[O:5]
[H][#6:8](-[$([#1,*]):2])[S:3]([#8:6])(=[O:4])=[O:5]
None
[#6:8](-[$([#1,*]):2])=O.[#8:6][S:3]([#8:4])=[O:5]
None
