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Thermo Scientific Chemicals
Bromothymol Blue sodium salt
CAS: 34722-90-2 | C27H27Br2NaO5S | 646.37 g/mol
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CAS34722-90-2
IUPAC Namesodium 2-{[(1Z)-3-bromo-2-methyl-4-oxo-5-(propan-2-yl)cyclohexa-2,5-dien-1-ylidene][3-bromo-4-hydroxy-2-methyl-5-(propan-2-yl)phenyl]methyl}benzene-1-sulfonate
Molecular FormulaC27H27Br2NaO5S
InChI KeyNMKFVGALBGZKGW-FKWCIMQXSA-M
SMILES[Na+].CC(C)C1=CC(\C(C2=CC=CC=C2S([O-])(=O)=O)=C2/C=C(C(C)C)C(=O)C(Br)=C2C)=C(C)C(Br)=C1O
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規格
規格表
規格表Solution Test0.1% in water: clear solution
FormPowder
lambda-max (UV-Vis)612-618nm (pH 10 buffer)
Appearance (Color)Green to dark green to yellow to orange to orange-brown to brown
Color ChangeYellow @ pH 6.0 to blue @ pH 7.6
It is employed as a pH indicator which is yellow at pH ? 6.0 and blue at pH ? 7.6. It finds its major application in lithium battery, textiles and antagonists.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Applications
It is employed as a pH indicator which is yellow at pH ≤ 6.0 and blue at pH ≥ 7.6. It finds its major application in lithium battery, textiles and antagonists.
Solubility
Soluble in water and ethanol.
Notes
Store away from oxidizing agents. Keep the container tightly closed and place it in a cool, dry and well ventilated condition.
It is employed as a pH indicator which is yellow at pH ≤ 6.0 and blue at pH ≥ 7.6. It finds its major application in lithium battery, textiles and antagonists.
Solubility
Soluble in water and ethanol.
Notes
Store away from oxidizing agents. Keep the container tightly closed and place it in a cool, dry and well ventilated condition.
RUO – Research Use Only
General References:
- Robert H. Byrne. Standardization of standard buffers by visible spectrometry.Anal. Chem.,1987,59(10), 1479-1481.
- P.V. Rao.; J. Horwitz.; J.S. Zigler. α-Crystallin, a Molecular Chaperone, Forms a Stable Complex with Carbonic Anhydrase upon Heat Denaturation.Biochem. Biophys. Res. Commun.,1993,190(3), 786-793.
- Acid-base indicator: pH 6.0 - 7.6.