86778
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:
Molecular Weight:
661.96
Beilstein:
2228548
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
Recommended Products
grade
for microscopy
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
Certificates of Analysis (COA)
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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)
Ion association titration for the determination of local anesthetics in pharmaceuticals with tetrabromophenolphthalein ethyl ester as an indicator.
T Sakai et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 17(9), 1105-1107 (2001-11-16)
D L Mount et al.
Bulletin of the World Health Organization, 67(3), 295-300 (1989-01-01)
Two field-adapted colorimetric methods for measuring the antimalarial drug chloroquine in urine are described. Both are modifications of the method of Saker and Solomons for screening urine for phencyclidine and other drugs of abuse, using the colour reagent tetrabromophenolphthalein ethyl
J G Rio et al.
Journal of analytical toxicology, 5(6), 267-269 (1981-11-01)
A simple direct colorimetric test using a tetrabromophenolphthalein reagent for detecting basic drugs in urine is described. The response of 62 commonly encountered drugs and metabolites to this test are described and 39 of these compounds were found to react.
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