bromophenol blue

Term ID

CHEBI:59424

Synonyms

• 3',3'',5',5''-tetrabromophenolsulfonephthalein
• 3',3'',5',5''-tetrabromophenolsulfophthalein
• 4,4'-(1,1-dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis(2,6-dibromophenol)
• bromophenol blue, sultone form

Definition

3H-2,1-Benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 3,5-dibromo-4-hydroxyphenyl groups. It is used as a laboratory indicator, changing from yellow below pH 3 to purple at pH 4.6, and as a size marker for monitoring the progress of agarose gel and polyacrylamide gel electrophoresis. It has also been used as an industrial dye.

References

• Beilstein:61698
• CAS:115-39-9

Ontology

ChEBI  ( EBI )

Resources

CTD