2-Benzimidazolylthioacetic acid ethyl ester 2-[(Carboethoxymethyl)mercapto]benzimidazole 5429-62-9 Acetic acid, (1H-benzimidazol-2-ylthio)-, ethyl ester Acetic acid, 2-benzimidazolylthio-, ethyl ester NSC14189