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QV7

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Hetero-Atom Name 3-hydroxy-4-[(E)-{2-sulfo-4-[(E)-(4-sulfophenyl)diazenyl]phenyl}diazenyl]naphthalene-2,7-disulfonic acid
Synonym ponceau S
Code QV7
Formula C22 H16 N4 O13 S4
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