... > SECTION VI - PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES > CHAPTER 29 - ORGANIC CHEMICALS > IX. NITROGEN-FUNCTION COMPOUNDS > 2922 Oxygen-function amino-compounds > Amino-naphthols and other amino-phenols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof > Aminohydroxynaphthalenesulphonic acids and their salts