5892-48-8 97-44-9 Arsonic acid, (3-(acetylamino)-4-hydroxyphenyl)-, monosodium salt (9CI) EINECS 227-573-1 Sodium N-acetyl-4-hydroxy-m-arsanilate Sodium acetarsone Sodium hydrogen (3-acetamido-4-hydroxyphenyl)arsonate m-ARSANILIC ACID, N-ACETYL-4-HYDROXY-, SODIUM SALT