18470

Bromothymol Blue sodium salt

for microscopy (Bot., Hist., Vit.), indicator (pH 6.0-7.6)

• 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
• Numéro Beilstein : 6887926
• Numéro CE : 252-169-7
• Numéro MDL: MFCD00077263
• Code UNSPSC : 12171500
• ID de substance PubChem : 57647742
• Nomenclature NACRES : NA.25

Propriétés

• Qualité: for microscopy (Bot., Hist., Vit.); for molecular biology; indicator (pH 6.0-7.6)
• Forme: powder
• Technique(s): titration: suitable
• visual transition interval: 6.0-7.6, yellow to blue
• Température de stockage: room temp
• Chaîne 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
• 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+;
• Clé InChI: NMKFVGALBGZKGW-FKWCIMQXSA-M

Description

Description générale

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

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)