(2-Naphthylthio)acetic acid 2-Naphthylthioglycolic acid 93-21-0 Acetic acid, (2-naphthalenylthio)- Acetic acid, (2-naphthylthio)- (8CI) Brown G Acid EINECS 202-229-3 NSC 2735 Naphthalene-beta-thioglycolic acid Thioglycolic acid, 2-naphthyl- beta-Naphthylthioglycolic acid