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BTB

Product Name
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;SODIUM BROMOTHYMOL BLUE
CBNumber
CB2465982
Molecular Formula
C27H29Br2NaO5S
Formula Weight
648.38
MOL File
34722-90-2.mol
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BTB Property

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
6.0-7.6, yellow to blue
PH Range
Yellow (6.0) to blue (7.6)
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)
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)
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Safety

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
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
114421
Product name
Bromothymol Blue sodium salt
Purity
ACS reagent
Packaging
5g
Price
$40.6
Updated
2024/03/01
Sigma-Aldrich
Product number
114421
Product name
Bromothymol Blue sodium salt
Purity
ACS reagent
Packaging
25g
Price
$143
Updated
2024/03/01
Sigma-Aldrich
Product number
1.01895
Product name
Bromothymol blue sodium salt
Purity
indicator water-soluble ACS
Packaging
10g
Price
$273
Updated
2024/03/01
Sigma-Aldrich
Product number
BX1560
Product name
Bromothymol Blue, Sodium Salt
Purity
meets analytical specifications of USP/NF GR ACS
Packaging
25g
Price
$189
Updated
2022/05/15
TCI Chemical
Product number
S0044
Product name
Bromothymol Blue Sodium Salt
Packaging
5g
Price
$51
Updated
2024/03/01
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BTB Chemical Properties,Usage,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

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BTB Suppliers

AppliChem GmbH
Tel
--
Fax
--
Email
service@applichem.de
Country
Germany
ProdList
968
Advantage
65
Service Chemical Inc.
Tel
--
Fax
--
Email
sales@chemos-group.com
Country
Germany
ProdList
6350
Advantage
71
Labotest
Tel
--
Fax
--
Email
sales@labotest.com
Country
Germany
ProdList
3564
Advantage
42
Merck Schuchardt OHG
Tel
--
Fax
--
Email
schuchardt-vertrieb@merck.de
Country
Germany
ProdList
5827
Advantage
74
AppliChem GmbH
Tel
--
Fax
--
Email
service@applichem.de
Country
Germany
ProdList
1607
Advantage
74
ABCR GmbH & CO. KG
Tel
--
Fax
--
Email
info@abcr.de
Country
Germany
ProdList
6831
Advantage
75
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View Lastest Price from BTB manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
BTB 34722-90-2
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20T
Release date
2024-07-29
Career Henan Chemical Co
Product
BTB 34722-90-2
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
25kg
Release date
2019-07-05

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