114774
3′,3′′,5′,5′′-Tetrabromophenolphthalein ethyl ester potassium salt
indicator grade
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About This Item
Empirical Formula (Hill Notation):
C22H13Br4KO4
CAS Number:
Molecular Weight:
700.05
EC Number:
263-661-6
UNSPSC Code:
12171500
PubChem Substance ID:
Beilstein/REAXYS Number:
3848263
MDL number:
grade
indicator grade
visual transition interval
3.0-3.5, yellow to green, 4.2-4.9, blue-green to blue-violet
mp
210 °C (dec.) (lit.)
λmax
386 nm (2nd), 593 nm
SMILES string
[K+].CCOC(=O)c1ccccc1\C(c2cc(Br)c([O-])c(Br)c2)=C3\C=C(Br)C(=O)C(Br)=C3
InChI
1S/C22H14Br4O4.K/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;/q;+1/p-1
InChI key
WCIQBKUTYDIBJC-UHFFFAOYSA-M
Biochem/physiol Actions
3′,3′′,5′,5′′-Tetrabromophenolphthalein ethyl ester is used in the spectrophotometric method of total protein determination.
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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