Sulfamethizole (200 mg)

Sulfamethoxazole (200 mg)

Sulfamethoxazole N4-Glucoside (25 mg) (4-(beta-D-glucopyranosylamino)-N-(5-methyl-3-isoxazolyl)-benzenesulfonamide)

Sulfamethoxazole Related Compound A (15 mg) (N-{4-[N-(5-methylisoxazol-3-yl)sulfamoyl]phenyl}acetamide)

Sulfamethoxazole Related Compound B (15 mg) (4-amino-N-{4-[N-(5-methylisoxazol-3-yl)sulfamoyl]phenyl}benzenesulfonamide)

Sulfamethoxazole Related Compound C (15 mg) (5-methylisoxazol-3-amine)

Sulfamethoxazole Related Compound F (15 mg) (4-amino-N-(3-methylisoxazol-5-yl)benzenesulfonamide)

Sulfanilamide (5 g)

Sulfanilamide Melting Point Standard (1 g) (Approximately 165 degrees)

Sulfanilic Acid (200 mg)