Section 06 Products of the chemical or allied 29 Organic chemicals 29 21 Amine-function compounds 29 21 51 O-, m-, p-phenylenediamine, diaminotoluenes, etc; salts thereof 29 21 51 00 O-, m-, p-phenylenediamine, diaminotoluenes, etc; salts thereof Commodity Code Description 29 21 51 00 00 O-, m-, p-phenylenediamine, diaminotoluenes, etc; salts thereof
