ChemicalBook >> CAS DataBase List >>BTB
BTB
- CAS No.
- 34722-90-2
- Chemical Name:
- BTB
- Synonyms
- BROMTHYMOL BLUE;Bromothymol Blue, sodium salt,pure,water soluble, indicator;BTB;Labotest-B;Bromothymol;Einecs 252-169-7;BROMOTHYMOL BLUE SOL;LABOTEST-BB LT00159732;BROMTHYMOL BLUE SODIUM;Bromothymol Blue 0.04%
- CBNumber:
- CB2465982
- Molecular Formula:
- C27H29Br2NaO5S
- Molecular Weight:
- 648.38
- MDL Number:
- MFCD00077263
- MOL File:
- 34722-90-2.mol
- MSDS File:
- SDS
Last updated:2025-07-14 15:27:00
| 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 |
| PH | 6.0-7.6, yellow to blue |
| PH Range | Yellow (6.0) to blue (7.6) |
| Odor | Characteristic odour |
| Water Solubility | SOLUBLE |
| ε(extinction coefficient) | ≥35000 at 614-618nm in 0.1 M NaOH at 0.005g/L |
| 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) |
| FDA UNII | CFN0FBC3YH |
| 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) |
| UNSPSC Code | 12352107 |
| NACRES | NB.21 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P271-P280 | |||||||||
| 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 | |||||||||
| NFPA 704 |
|
BTB price More Price(38)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 114421 | Bromothymol Blue sodium salt ACS reagent | 34722-90-2 | 5g | $42.1 | 2025-07-31 | Buy |
| Sigma-Aldrich | 114421 | Bromothymol Blue sodium salt ACS reagent | 34722-90-2 | 25g | $148 | 2025-07-31 | Buy |
| Sigma-Aldrich | 1.01895 | Bromothymol blue sodium salt indicator water-soluble ACS | 34722-90-2 | 10g | $287 | 2025-07-31 | Buy |
| Sigma-Aldrich | BX1560 | Bromothymol Blue, Sodium Salt meets analytical specifications of USP/NF GR ACS | 34722-90-2 | 25g | $189 | 2022-05-15 | Buy |
| TCI Chemical | S0044 | Bromothymol Blue Sodium Salt | 34722-90-2 | 5g | $51 | 2025-07-31 | Buy |
BTB Chemical Properties,Uses,Production
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
Raw materials
Preparation Products
Global( 273)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shaanxi Dideu Medichem Co. Ltd | +86-029-81138252 +86-18789408387 | 1057@dideu.com | China | 3944 | 58 |
| Watson Biotechnology Co.,Ltd | +86-18186686046 +86-18186686046; | sales01@watsonbiotech.cn | China | 5756 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29855 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28172 | 58 |
| Shenyang Simchoice Chemical Co.,Ltd | +86-024-23769576 +86-15040101888 | sales@simchoicechem.com | China | 254 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49733 | 58 |
| Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | sale04@alfachem.cn | China | 12419 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| ANHUI WITOP BIOTECH CO., LTD | +8615255079626 | eric@witopchemical.com | China | 23541 | 58 |
| Baoji Guokang Healthchem co.,ltd | +8615604608665 15604608665 | dominicguo@gk-bio.com | CHINA | 9414 | 58 |
View Lastest Price from BTB manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-08-11 | Bromothymol blue sodium salt
34722-90-2
|
US $0.00-0.00 / kg | 1kg | 0.99 | 20MT | Watson Biotechnology Co.,Ltd | |
 |
2024-07-29 | BTB
34722-90-2
|
US $1.00 / KG | 1KG | 99% | 20T | Shaanxi Dideu Medichem Co. Ltd | |
 |
2019-07-07 | BTB
34722-90-2
|
US $1.00 / KG | 1KG | 99% | 25kg | Career Henan Chemical Co |
-
- Bromothymol blue sodium salt
34722-90-2
- US $0.00-0.00 / kg
- 0.99
- Watson Biotechnology Co.,Ltd
-
- BTB
34722-90-2
- US $1.00 / KG
- 99%
- Shaanxi Dideu Medichem Co. Ltd
-
- BTB
34722-90-2
- US $1.00 / KG
- 99%
- Career Henan Chemical Co
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
3-(3-Bromo-5-isopropyl-2-methyl-4-sodiooxyphenyl)-3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-3H-2,1-benzoxathiole 1,1-dioxide
3-[5-Bromo-4-(sodiooxy)-6-methyl-3-(1-methylethyl)phenyl]-3-[5-bromo-4-hydroxy-6-methyl-3-(1-methylethyl)phenyl]-3H-2,1-benzoxathiole-1,1-dioxide
Bromothymol Blue, sodium salt,pure,water soluble, indicator
Bromothymol Blue sodium salt,pure,conform toACS
sodium α-(3-bromo-5-isopropyl-4-oxo-2-methyl-2,5-cyclohexadienylidene)-2-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)toluenesulphonate
Brimothymol Blue Sodium Salt
Labotest-B
LABOTEST-BB LT00159732
DIBROMOTHYMOL SULFONEPHTHALEIN, SODIUM SALT
BROMTHYMOL BLUE
BROMTHYMOL BLUE, SODIUM SALT
BROMTHYMOL BLUE SODIUM SALT, WATER SOLUBLE
BROMOTHYMOL BLUE SODIUM SALT
BROMOTHYMOL BLUE, WATER SOLUBLE
Einecs 252-169-7
Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-bromo-3-methyl-6-(1-methylethyl)-, sodium salt (1:1)
BroMine thyMol blue sodiuM
Bromothymol Blue sodium salt, Chemistry
SODIUM BROMOTHYMOL BLUE
phenol,4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis[2-bromo-3-methyl-6-(1-methyleth
Phenol,4,4’-(3H-2,1-benzoxathiol-3-ylidene)bis[2-bromo-3-methyl-6-(1-methylethyl)-,S,S-dioxide,monosodiumsalt
yl)-,s,s-dioxide,monosodiumsalt
Phenol, 4,4-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis2-bromo-3-methyl-6-(1-methylethyl)-, monosodium salt
bromothymol blue sodium salt solution
BROMOTHYMOLBLUE,WATERSOLUBLE,REAGENT,ACS
TRITON X-405 REAGENT GRADE
Phenol, 4,4'-(3H-2,1-benzoxathiol- 3-ylidene)bis[2-bromo-3-methyl-6-(1-methylethyl) -, S,S-dioxide, monosodium salt
BTB
3,3'-DIBROMOTHYLMOLSULFONPHTHALEIN SODIUM SALT
3',3''-DIBROMOTHYMOLSULFONEPHTHALEIN SODIUM SALT
3',3''-DIBROMOTHYMOLSULFONPHTHALEIN SODIUM SALT
sodium alpha-(3-bromo-5-isopropyl-4-oxo-2-methyl-2,5-cyclohexadienylidene)-2-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)toluenesulphonate
BROMOTHYMOL BLUE 0.04 WT. % SOLUTION &
BROMOTHYMOL BLUE WATER-SOLUBLEINDICATOR, REAG. ACS
BROMOTHYMOL BLUE, SODIUM SALT, A.C.S. RE AGENT
BROMOTHYMOL BLUE SODIUM SALT, FOR MICROS COPY
BROMTHYMOL BLUE SODIUM ACS REAGENT
BROMOTHYMOL BLUE, 0.04 WT. % SOLUTION IN WATER
BROMTHYMOL BLUE SODIUM
BROMOTHYMOL BLUE SODIUM SALT, WATER SOLUBLE INDICATOR
BROMOTHYMOL BLUE WATER-SOLUBLE INDICATOR, REAG.
Bromothymol Blue sodium salt, conform to ACS, pure
Bromothymol Blue, sodium salt, water soluble, indicator, pure
BROMTHYMOL BLUE SOLUTION 0.04% AQUEOUS
BROMTHYMOL BLUE, SODIUM SALT REAGENT (ACS)
Bromothymol Blue sodium salt, indicator, ACS reagent
BROMOTHYMOL BLUE SOL
BROMTHYMOL BLUE SOLUTION, 0.04% AQUEOUSBROMTHYMOL BLUE SOLUTION, 0.04% AQUEOUSBROMTHYMOL BLUE SOLUTION, 0.04% AQUEOUS
BROMTHYMOL BLUE, SODIUM SALT, REAGENT (ACS)BROMTHYMOL BLUE, SODIUM SALT, REAGENT (ACS)BROMTHYMOL BLUE, SODIUM SALT, REAGENT (ACS)
Bromothymol blue sodium salt, AR
