3,4-dihydroxy-5-nitrobenzaldehyde;3-Nitro-4,5-dihydroxybenzaldehyde; Entacapone EP Impurity C;3,4-Dihydroxy-5-nitrobenzaldehyde
3,4-dihydroxy-5-nitrobenzaldehyde;3-Nitro-4,5-dihydroxybenzaldehyde; Entacapone EP Impurity C;3,4-Dihydroxy-5-nitrobenzaldehyde