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Product Details:
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Product Name: | Bromothymol Blue Sodium Salt | CAS NO: | 34722-90-2 |
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Appearance: | Powder | Sample: | Available |
Formula: | C27H29Br2NaO5S | EINECS NO: | 252-169-7 |
Colour: | Orange-brown To Dark Green | Solubility: | Solubility Soluble In Water, Ethanol |
CAS NO 34722-90-2 Bromothymol Blue sodium salt
Product Name: |
BTB |
Synonyms: |
3',3''-Dibromothymolsulphonephthalein, sodium salt;Bromothymol Blue, water soluble p.a.;Bromothymol Blue sodium salt, 0.04% w/v aq. soln.;Bromothymol Blue, powder, sodium salt;Bromothymol Blue, Reagent;Bromothymol;Sodium 2-[(Z)-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-(3-bromo-2-methyl-4-oxo-5-propan-2-yl-1-cyclohexa-2,5-dienylidene)methyl]benzenesulfonate;Sodium alpha-(3-bromo-5-isopropyl-4-oxo-2-methyl-2,5-cyclohexadienylidene)-2-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)toluenesulfonate |
CAS: |
34722-90-2 |
MF: |
C27H29Br2NaO5S |
MW: |
648.38 |
EINECS: |
252-169-7 |
Product Categories: |
marker;B;Analytical Chemistry;Indicator (pH);Stains and Dyes;Stains&Dyes, A to;Organics;pH Indicators;Sulfonephthalein;AR |
Mol File: |
34722-90-2.mol |
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Melting point |
200-202°C |
density |
0.990 |
storage temp. |
room temp |
solubility |
Solubility Soluble in water, ethanol |
form |
Powder |
pka |
7.0, 7.1(at 25℃) |
color |
Orange-brown to dark green |
Odor |
Characteristic odour |
PH Range |
Yellow (6.0) to blue (7.6) |
Water Solubility |
SOLUBLE |
λmax |
615nm, 392nm |
BRN |
6887926 |
Stability: |
Stable. Incompatible with strong oxidizing agents. |
Major Application |
Lithium battery, textiles, antagonists |
CAS DataBase Reference |
34722-90-2(CAS DataBase Reference) |
EPA Substance Registry System |
Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-bromo-3-methyl-6-(1-methylethyl)-, monosodium salt (34722-90-2) |
Chemical Properties |
Dark greenish gold crystalline powder |
Uses |
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. |
Uses |
Suitable for use:
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Uses |
Bromothymol Blue sodium salt has been used as a pH indicator in the yeast growth media (YPD, yeast extract peptone dextrose). |
General Description |
Bromothymol Blue is a sulfonated hydroxyquinone in acidic solutions. In alkaline solutions, it is present as a dianion that is blue with a larger conjugated system than the yellow hydroxyquinone. Both forms are lipophilic. It is also known as bromthymol blue or dibromothymolsulfonphthalein. |
Biochem/physiol Actions |
Bromothymol Blue is a pH-indicator. It is also used for carbonic anhydrase assay due to the conversion of carbon dioxide to bicarbonate. |
General description
Bromothymol blue is a pH indicator for weak acids and bases. In neutral solution, it appears bluish-green. At pH above 7.6 it appears blue, and at pH below 6.0 it appears yellow.
Bromothymol blue (BTB) is an anionic dye. It can be protonated or deprotonated to generate yellow or blue. BTB helps to make ion-pair complex, that is used to identify several pharmaceutical compounds with the help of extractive spectrophotometric methods.
Application
Suitable for use:
In preparations of pH indicator solutions
In phospholipid staining on tissues and cells prepared on microscopy slides
Contact Person: Maggie Ma
Tel: +0086 188 7414 9531