18470

Bromothymol Blue sodium salt

suitable for microscopy

• Synonyme(s) : Bromthymol Blue sodium salt, 3′,3′′-dibromothymolsulfonephthalein sodium salt
• Formule empirique (notation de Hill) : C₂₇H₂₇Br₂NaO₅S
• Numéro CAS: 34722-90-2
• Poids moléculaire : 646.36
• UNSPSC Code: 12171500
• NACRES: NA.25
• PubChem Substance ID: 57647742
• EC Number: 252-169-7
• Beilstein/REAXYS Number: 6887926
• MDL number: MFCD00077263

Propriétés

• grade: Molecular Biology
• form: powder
• technique(s): titration: suitable
• visual transition interval: 6.0-7.6, yellow to blue
• suitability: suitable for microscopy
• storage temp.: room temp
• SMILES string: [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
• InChI: 1S/C27H28Br2O5S.Na/c1-13(2)18-11-20(15(5)24(28)26(18)30)23(17-9-7-8-10-22(17)35(32,33)34)21-12-19(14(3)4)27(31)25(29)16(21)6;/h7-14,30H,1-6H3,(H,32,33,34);/q;+1/p-1/b23-21+;
• InChI key: NMKFVGALBGZKGW-FKWCIMQXSA-M

Description

General description

Bromothymol blue is a pH indicator for weak acids and bases. In neutral solution, it appears bluish-green. At pH above 7.6 it appears blue, and at pH below 6.0 it appears yellow.
Bromothymol blue (BTB) is an anionic dye. It can be protonated or deprotonated to generate yellow or blue. BTB helps to make ion-pair complex, that is used to identify several pharmaceutical compounds with the help of extractive spectrophotometric methods.

Application

Suitable for use:

• In preparations of pH indicator solutions
• In phospholipid staining on tissues and cells prepared on microscopy slides

Informations sur la sécurité

• Classe de stockage: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)