S1U1L1F4O1N1Y4L1S1
15 points
SULFONYLS is validvalid
SULFONYL, a bivalent radical
SULFONYL, a bivalent sulphone group, also SULFURYL, SULPHONYL, SULPHURYL
SULFONYL, a bivalent radical
SULFONYL, a bivalent sulphone group, also SULFURYL, SULPHONYL, SULPHURYL