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86778

Sigma-Aldrich

3′,3″,5′,5″-Tetrabromophenolphthalein ethyl ester

for microscopy

Synonym(s):

TBPE

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About This Item

Empirical Formula (Hill Notation):
C22H14Br4O4
CAS Number:
1176-74-5
Molecular Weight:
661.96
Beilstein:
2228548
EC Number:
214-645-2
MDL number:
MFCD00066387
UNSPSC Code:
12352100
PubChem Substance ID:
57653194
NACRES:
NA.22

grade

for microscopy

Quality Level

100

form

solid

SMILES string

CCOC(=O)c1ccccc1\C(c2cc(Br)c(O)c(Br)c2)=C3\C=C(Br)C(=O)C(Br)=C3

InChI

1S/C22H14Br4O4/c1-2-30-22(29)14-6-4-3-5-13(14)19(11-7-15(23)20(27)16(24)8-11)12-9-17(25)21(28)18(26)10-12/h3-10,27H,2H2,1H3

InChI key

SQFXATUXPUCFFO-UHFFFAOYSA-N

Application

3′,3″,5′,5″-Tetrabromophenolphthalein ethyl ester (TBPE) is an anionic dye used as a counter ion in the spectrophotometric determination of cationic surfactants. TBPE is also used in the spectrometric determination of aliphatic primary, secondary and tertiary amines.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG0317
BCCG6640
BCCF4665
BCCD3239
BCCD4279

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Simultaneous spectrophotometric analysis of aliphatic amines utilizing thermochromism of charge-transfer complexes with tetrabromophenolphthalein ethyl ester.
Sakai T, et al.
Analytical Sciences, 21(12), 1557-1560 (2005)
Simple method for spectrophotometric determination of cationic surfactants without liquid-liquid extraction.
Kamaya M, et al.
Analytica Chimica Acta, 384(2), 215-218 (1999)
[Pharmaco-analytical application of tetrabromophenolphthalein ethyl ester indicator dye. III. Interaction between alkaloids and TBPE].
G Szász et al.
Acta pharmaceutica Hungarica, 50(4), 161-165 (1980-07-01)
Spectrophotometric determination of histamine in mast cells, muscle and urine by solvent extraction with copper(II) and tetrabromophenolphthalein ethyl ester.
T Sakai et al.
The Analyst, 109(12), 1569-1572 (1984-12-01)
The application of the TBP test to bile.
E G Saker
Journal of analytical toxicology, 8(1), 51-51 (1984-01-01)
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