TBPE (Tetrabromophenolphthalein Ethyl Ester Potassium Salt)

CAS: 62637-91-6

Ref. TR-T104030

Product Information

• Name: TBPE (Tetrabromophenolphthalein Ethyl Ester Potassium Salt)
• Synonyms: Benzoic acid, 2-[(3,5-dibromo-4-hydroxyphenyl)(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-, ethyl ester, potassium salt (9CI), Phenolphthalein, 3',3'',5',5''-tetrabromo-, ethyl ester, potassium deriv. (6CI)
• Brand: TRC

Description

Applications TBPE (Tetrabromophenolphthalein Ethyl Ester Potassium Salt) is a sensitive spectrophotometric reagent for amines, quaternary ammonium salts and other cations. TBPE has been incorporated into colour-changing test strips for lead(II), and has been used in testing for ethoxylated nonionic surfactants.
References Takahashi, Y.; Anal. Sci., 23, 147 (2007); Kamaya, M.; et al.: Mizu Kankyo Gakkaishi, 27, 735 (2004).

Chemical properties

• Molecular weight: 700.051
• Formula: C₂₂H₁₃Br₄O₄·K
• Color/Form: Neat
• InChI: 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: InChIKey=WCIQBKUTYDIBJC-UHFFFAOYSA-M
• SMILES: CCOC(=O)c1ccccc1C(=C1C=C(Br)C(=O)C(Br)=C1)c1cc(Br)c(O[K])c(Br)c1