溴百里酚蓝 钠盐

C₂₇H₂₇Br₂NaO₅S

646.36

6887926

252-169-7

MFCD00077263

57647742

NA.25

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.

Suitable for use:

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

100

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

powder

titration: suitable

6.0 - 7.6, yellow to blue

room temp

[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

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+;

NMKFVGALBGZKGW-FKWCIMQXSA-M

11 - Combustible Solids

WGK 3

Eyeshields, Gloves, type N95 (US)