Sulfosalicylic Acid

2-Hydroxy-5-sulfobenzoic acid, 5-Sulfo-2-hydroxybenzoic acid; 5-sulpho-2-hydroxybenzoic acid; 3-sulpho-6-hydroxybenzoic acid; 3-sulpho-6-hydroxybenzoic acid; sulfosalicylic acid; C₇H₆O₆S,2H₂O = 254.2 (5965-83-3)

White or almost white, crystalline powder or crystals, very soluble in water and in ethanol (96%).

Melting point, about 109°.