CHEBI:86218 - cresol red

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ChEBI Name cresol red
ChEBI ID CHEBI:86218
Definition A member of the class of 2,1-benzoxathioles that is 2,1-benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 4-hydroxy-5-methylphenyl groups.
Stars This entity has been manually annotated by the ChEBI Team.
Supplier Information ChemicalBook:CB3167375, ChemicalBook:CB4183426, eMolecules:494487, ZINC000000899824
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Curcumin is a bright yellow chemical produced by plants of the Curcuma longa species. It is the principal curcuminoid of turmeric (Curcuma longa), a member of the ginger family, Zingiberaceae. It is sold as a herbal supplement, cosmetics ingredient, food flavoring, and food coloring. Chemically, curcumin is a polyphenol, more particularly a diarylheptanoid, belonging to the group of curcuminoids, which are phenolic pigments responsible for the yellow color of turmeric. Laboratory and clinical research have not confirmed any medical use for curcumin. It is difficult to study because it is both unstable and poorly bioavailable. It is unlikely to produce useful leads for drug development as a lead compound.
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Formula C21H18O5S
Net Charge 0
Average Mass 382.43000
Monoisotopic Mass 382.08749
InChI InChI=1S/C21H18O5S/c1-13-11-15(7-9-18(13)22)21(16-8-10-19(23)14(2)12-16)17-5-3-4-6-20(17)27(24,25)26-21/h3-12,22-23H,1-2H3
InChIKey OBRMNDMBJQTZHV-UHFFFAOYSA-N
SMILES Cc1cc(ccc1O)C1(OS(=O)(=O)c2ccccc12)c1ccc(O)c(C)c1
Roles Classification
Application(s): acid-base indicator
An acid or base which exhibits a colour change on neutralization by the basic or acidic titrant at or near the equivalence point of a titration.
dye

two-colour indicator
A colour indicator that possesses a different colour on each side of the transition interval.
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ChEBI Ontology
Outgoing cresol red (CHEBI:86218) has role acid-base indicator (CHEBI:50407)
cresol red (CHEBI:86218) has role dye (CHEBI:37958)
cresol red (CHEBI:86218) has role two-colour indicator (CHEBI:50412)
cresol red (CHEBI:86218) is a 2,1-benzoxathiole (CHEBI:38087)
cresol red (CHEBI:86218) is a arenesulfonate ester (CHEBI:38094)
cresol red (CHEBI:86218) is a polyphenol (CHEBI:26195)
cresol red (CHEBI:86218) is a sultone (CHEBI:38088)
IUPAC Name
3,3-bis(4-hydroxy-5-methylphenyl)-2,1λ6-benzoxathiole-1,1(3H)-dione
Synonyms Sources
3',3''-Dimethylphenolsulfonephthalein ChemIDplus
Cresolsulfophthalein ChemIDplus
NSC 7224 ChemIDplus
o-Cresol Red ChemIDplus
o-Cresolsulfonephthalein ChemIDplus
Manual Xref Database
Cresol_Red Wikipedia
View more database links
Registry Numbers Types Sources
1733-12-6 CAS Registry Number ChemIDplus
343399 Reaxys Registry Number Reaxys
Citation Type Source
26003703 PubMed citation Europe PMC
Last Modified
29 June 2015