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ChemicalBook >> CAS DataBase List >> BTB

BTB

BTB price.
  • $8 - $5500
  • Product name: BTB
  • CAS: 34722-90-2
  • MF: C27H29Br2NaO5S
  • MW: 648.38
  • EINECS:252-169-7
  • MDL Number:MFCD00077263
  • 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;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
Price52 Properties Safety Information Description
52 prices
Selected condition：
Brand
  • aablocks
  • AK Scientific
  • Ambeed
  • Apolloscientific
  • Biosynth
  • Chem-Impex
  • ChemScene
  • GFS CHEMICALS
  • Medical Isotopes, Inc.
  • ProChem
  • Sigma-Aldrich
  • TCI Chemical
  • Thermo Scientific Chemicals
  • TRC
  • Usbiological
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  • 2500g
  • Manufactureraablocks
  • Product numberAA00ILEU
  • Product descriptionSodium 2-bromo-4-(3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-6-isopropyl-3-methylphenolate Indicator,Transitionrange:pH5.8-7.6yellow-blue
  • Packaging5g
  • Price$8
  • Updated2026-05-29
  • Buy
  • Manufactureraablocks
  • Product numberAA00ILEU
  • Product descriptionSodium 2-bromo-4-(3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-6-isopropyl-3-methylphenolate Indicator,Transitionrange:pH5.8-7.6yellow-blue
  • Packaging25g
  • Price$16
  • Updated2026-05-29
  • Buy
  • Manufactureraablocks
  • Product numberAA00ILEU
  • Product descriptionSodium 2-bromo-4-(3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-6-isopropyl-3-methylphenolate 95%
  • Packaging500g
  • Price$229
  • Updated2026-05-29
  • Buy
  • ManufacturerAK Scientific
  • Product number6747AF
  • Product descriptionBromothymol Blue sodium salt
  • Packaging100g
  • Price$178
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA819808
  • Product descriptionSodium2-bromo-4-(3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-6-isopropyl-3-methylphenolate
  • Packaging100g
  • Price$84
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA819808
  • Product descriptionSodium2-bromo-4-(3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-6-isopropyl-3-methylphenolate
  • Packaging25g
  • Price$27
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA819808
  • Product descriptionSodium2-bromo-4-(3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-6-isopropyl-3-methylphenolate
  • Packaging5g
  • Price$10
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberBIB6017
  • Product descriptionBromothymol blue, sodium salt
  • Packaging50g
  • Price$143
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberBIB6017
  • Product descriptionBromothymol blue, sodium salt
  • Packaging25g
  • Price$82
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFB01473
  • Product descriptionBromothymol blue sodium salt
  • Packaging50g
  • Price$160
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberFB01473
  • Product descriptionBromothymol blue sodium salt
  • Packaging25g
  • Price$100
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberFB01473
  • Product descriptionBromothymol blue sodium salt
  • Packaging10g
  • Price$50
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberFB01473
  • Product descriptionBromothymol blue sodium salt
  • Packaging100g
  • Price$250
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberB-8988
  • Product descriptionBromothymol blue sodium salt
  • Packaging100g
  • Price$471
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFB01473
  • Product descriptionBromothymol blue sodium salt
  • Packaging250g
  • Price$500
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberB-8988
  • Product descriptionBromothymol blue sodium salt
  • Packaging250g
  • Price$940
  • Updated2026-06-04
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA00ILEU Sodium 2-bromo-4-(3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-6-isopropyl-3-methylphenolate Indicator,Transitionrange:pH5.8-7.6yellow-blue 5g $8 2026-05-29 Buy
aablocks AA00ILEU Sodium 2-bromo-4-(3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-6-isopropyl-3-methylphenolate Indicator,Transitionrange:pH5.8-7.6yellow-blue 25g $16 2026-05-29 Buy
aablocks AA00ILEU Sodium 2-bromo-4-(3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-6-isopropyl-3-methylphenolate 95% 500g $229 2026-05-29 Buy
AK Scientific 6747AF Bromothymol Blue sodium salt 100g $178 2021-12-16 Buy
Ambeed A819808 Sodium2-bromo-4-(3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-6-isopropyl-3-methylphenolate 100g $84 2021-12-16 Buy
Ambeed A819808 Sodium2-bromo-4-(3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-6-isopropyl-3-methylphenolate 25g $27 2021-12-16 Buy
Ambeed A819808 Sodium2-bromo-4-(3-(3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-6-isopropyl-3-methylphenolate 5g $10 2021-12-16 Buy
Apolloscientific BIB6017 Bromothymol blue, sodium salt 50g $143 2026-06-04 Buy
Apolloscientific BIB6017 Bromothymol blue, sodium salt 25g $82 2026-06-04 Buy
Biosynth FB01473 Bromothymol blue sodium salt 50g $160 2021-12-16 Buy
Biosynth FB01473 Bromothymol blue sodium salt 25g $100 2021-12-16 Buy
Biosynth FB01473 Bromothymol blue sodium salt 10g $50 2021-12-16 Buy
Biosynth FB01473 Bromothymol blue sodium salt 100g $250 2021-12-16 Buy
Biosynth B-8988 Bromothymol blue sodium salt 100g $471 2026-06-04 Buy
Biosynth FB01473 Bromothymol blue sodium salt 250g $500 2021-12-16 Buy
Biosynth B-8988 Bromothymol blue sodium salt 250g $940 2026-06-04 Buy
Next Last

Properties

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
PH Range :Yellow (6.0) to blue (7.6)
Odor :Characteristic odour
PH :6.0-7.6, yellow to blue
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
Cosmetics Ingredients Functions :HAIR DYEING
InChIKey :NMKFVGALBGZKGW-FKWCIMQXSA-M
SMILES :[Na+].CC(C)c1cc(c(C)c(Br)c1O)C(=C2\C=C(C(C)C)C(=O)C(Br)=C2C)\c3ccccc3S([O-])(=O)=O
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

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.

Description

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.

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Suppliers and manufacturers

NANTONG XINHE BIOTECH CO.,LTD BIOISCO(Lianyungang, Jiangsu) Biotechnology Co., Ltd Shanghai Biological Technology Development Co., Ltd. J & K SCIENTIFIC LTD. Meryer (Shanghai) Chemical Technology Co., Ltd. 3B Pharmachem (Wuhan) International Co.,Ltd. Alfa Aesar TCI (Shanghai) Development Co., Ltd. Energy Chemical Shandong Xiya Chemical Co., Ltd