# Identification of an aromatic compound for a quiz [closed]

I need help identifying this structure for a puzzle. Original text was blurry, so a white overlay was added for readability, though some fragments might be different. Any help or suggestions are appreciated.

## closed as off-topic by Mithoron, Todd Minehardt, Tyberius, DSVA, Jannis AndreskaNov 10 '17 at 19:52

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• I suppose the SO3 groups make it water-soluble. Does not really look like a dye (yet could be), I would rather bet on pharmaceutical. – TAR86 Nov 10 '17 at 6:13

I would expect neither Ne (Na only), nor 8 (3 only) for the marked fragments on the given structure. Both groups are most likely just sodium sulfonate $\ce{-SO3^-Na+}$ fragments. The name generated by MarvinSketch for the given structure is disodium 4‐(3‐carbamoyl‐5‐acetamidobenzamido)benzene‐1,3‐disulfonate: