3,4,5-Trimethoxy-2-nitrobenzoic acid methyl ester 5081-42-5 Benzoic acid, 3,4,5-trimethoxy-2-nitro-, methyl ester Methyl 3,4,5-trimethoxy-2-nitrobenzoate Methyl 6-nitro-3,4,5-trimethoxybenzoate NSC20282