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| 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 |  |
| 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:
- In preparations of pH indicator solutions
- In phospholipid staining on tissues and cells prepared on microscopy slides
| | 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. |
| | BTB Preparation Products And Raw materials |
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