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CHEBI:748481 - congo red free acid

Default Structure
ChEBI IDCHEBI:748481
ChEBI Namecongo red free acid
Stars
Last Modified29 June 2026
SubmitterChEMBL
DownloadsMolfile
FormulaC32H24N6O6S2
Net Charge0
Average Mass652.714
Monoisotopic Mass652.11987
SMILESNc1c(/N=N/c2ccc(-c3ccc(/N=N/c4cc(S(=O)(=O)O)c5ccccc5c4N)cc3)cc2)cc(S(=O)(=O)O)c2ccccc12
InChIInChI=1S/C32H24N6O6S2/c33-31-25-7-3-1-5-23(25)29(45(39,40)41)17-27(31)37-35-21-13-9-19(10-14-21)20-11-15-22(16-12-20)36-38-28-18-30(46(42,43)44)24-6-2-4-8-26(24)32(28)34/h1-18H,33-34H2,(H,39,40,41)(H,42,43,44)/b37-35+,38-36+
InChIKeyHFHIDKQMGIGARX-ATXIYDNESA-N
ChEBI Ontology
Outgoing Relation(s)
congo red free acid (CHEBI:748481) is a naphthalenes (CHEBI:25477)
congo red free acid (CHEBI:748481) is a sulfonic acid derivative (CHEBI:33552)
Synonyms  Source
C.i. direct red 28 free acidChEMBL
Congo red free acidChEMBL