CHEBI:86154 - bromocresol purple

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ChEBI Name bromocresol purple
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 3-bromo-4-hydroxy-5-methylphenyl groups. A hydrophilic dye that is used as a pH indicator and to measure serum albumin concentrations.
Stars This entity has been manually annotated by the ChEBI Team.
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Formula C21H16Br2O5S
Net Charge 0
Average Mass 540.22200
Monoisotopic Mass 537.90852
InChI InChI=1S/C21H16Br2O5S/c1-11-7-13(9-16(22)19(11)24)21(14-8-12(2)20(25)17(23)10-14)15-5-3-4-6-18(15)29(26,27)28-21/h3-10,24-25H,1-2H3
SMILES Cc1cc(cc(Br)c1O)C1(OS(=O)(=O)c2ccccc12)c1cc(C)c(O)c(Br)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.

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 bromocresol purple (CHEBI:86154) has role acid-base indicator (CHEBI:50407)
bromocresol purple (CHEBI:86154) has role dye (CHEBI:37958)
bromocresol purple (CHEBI:86154) has role two-colour indicator (CHEBI:50412)
bromocresol purple (CHEBI:86154) is a 2,1-benzoxathiole (CHEBI:38087)
bromocresol purple (CHEBI:86154) is a arenesulfonate ester (CHEBI:38094)
bromocresol purple (CHEBI:86154) is a organobromine compound (CHEBI:37141)
bromocresol purple (CHEBI:86154) is a polyphenol (CHEBI:26195)
bromocresol purple (CHEBI:86154) is a sultone (CHEBI:38088)
Synonyms Sources
5',5"-dibromo-o-cresolsulfophthalein ChEBI
HSDB 7729 ChemIDplus
Manual Xref Database
Bromocresol_purple Wikipedia
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Registry Numbers Types Sources
115-40-2 CAS Registry Number ChemIDplus
359618 Reaxys Registry Number Reaxys
Citations Waiting for Citations Types Sources
24709253 PubMed citation Europe PMC
25436239 PubMed citation Europe PMC
25660095 PubMed citation Europe PMC
25673775 PubMed citation Europe PMC
Last Modified
24 June 2015