3-10-00-00378 (Beilstein Handbook Reference) 4-Hydroxy-3-nitrobenzoic acid methyl ester 99-42-3 BRN 2115197 Benzoic acid, 4-hydroxy-3-nitro-, methyl ester EINECS 202-755-3 Methyl 4-hydroxy-3-nitrobenzoate NSC 28667