BTB
BTB Basic information
- 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
BTB Chemical Properties
- Melting point:
- 200-202°C
- Density
- 0.990
- storage temp.
- room temp
- solubility
- Solubility Soluble in water, ethanol
- pka
- 7.0, 7.1(at 25℃)
- form
- Powder
- 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)
Safety Information
- Hazard Codes
- Xn
- Risk Statements
- 20/21/22-36/37/38
- Safety Statements
- 24/25-36-26
- WGK Germany
- 3
- TSCA
- Yes
- HS Code
- 29349990
MSDS
- Language:English Provider:BTB
- Language:English Provider:SigmaAldrich
- Language:English Provider:ACROS
- Language:English Provider:ALFA
BTB Usage And Synthesis
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.
BTBSupplier
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BTB(34722-90-2)Related Product Information
- BROMOTHYMOL BLUE (BTB),BTB
- Bromo-methanesulfonyl-methane
- Bromomethyl methyl ether
- Ethyl methanesulfonate
- 2,5-DIMETHYLBENZYL ALCOHOL
- Benzhydrol
- 1,1-DIPHENYLETHANOL
- Methyl methanesulfonate
- 2-Ethylbenzenethiol
- BTB
- 4-ETHYL-O-XYLENE
- 2-Bromotoluene
- (S)-1-(3-BROMOPHENYL)ETHANOL
- 2-MERCAPTOBENZYL ALCOHOL
- Methyl benzenesulfonate
- (R)-1-(3-BROMOPHENYL)ETHANOL
- Cresol Purple
- 2,3-Dimethylbromobenzene