S1U1L1F4O1N1I1U1M3S1
15 points
SULFONIUMS is validvalid
SULFONIUM,
SULFONIUM, the positively charged group SH3, its salts or derivatives, also SULPHONIUM
SULFONIUM,
SULFONIUM, the positively charged group SH3, its salts or derivatives, also SULPHONIUM