Indigo carmine

• Synonyms:

  NSC-8646, NSC 8646, NSC8646, Indigotindisulfonate sodium, Brilliant Indigo

• Purity:

  =98%

• Smiles:

  O=S (C1=CC2=C (N/C (C2=O) =C3NC4=C (C=C (S (=O) ([O-]) =O) C=C4) C\3=O) C=C1) ([O-]) =O.[Na+].[Na+]

• CAS Number:

  860-22-0