Describing a chemical compound containing both amino groups and sulphonic acid groups (sulfur-based acidic structures).
From amino- + sulphonic (from sulphur/sulfur + -onic, a chemistry suffix). Sulphonic comes from Latin sulphur. These compounds are important in dyes and medicines.
Sulfanilamide, the first antibiotic ever used to save lives, is an aminosulphonic compound—making this obscure chemistry term the key to one of medicine's greatest breakthroughs in the 1930s.
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