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Sulfamethoxypyridazine-d3

Sulfamethoxazole-13c6

Sulfathiazole-13c6

Sulfanilamide-13c6

Sulfamerazine-13c6

Sulfadimidine-13c6

Sulfapyridine-13c6

Sulfaquinoxaline-13c6

Sulfisoxazole-13c6 (sulfafurazole-13c6)