2-14-00-00486 (Beilstein Handbook Reference) 2-Hydroxy-5-nitrometanilic acid 3-Amino-2-hydroxy-5-nitro-benzenesulfonic acid 3-Amino-2-hydroxy-5-nitrobenzenesulphonic acid 6-AMINO-4-NITRO-1-PHENOL-2-SULFONIC ACID 96-67-3 BRN 3369869 Benzenesulfonic acid, 3-amino-2-hydroxy-5-nitro- CCRIS 4583 EINECS 202-523-1 Kyselina 2-amino-4-nitrofenol-6-sulfonova [Czech] Kyselina 4-nitro-2-aminofenol-6-sulfonova [Czech] Metanilic acid, 2-hydroxy-5-nitro- NSC 7541