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Merck
CN

318752

Sigma-Aldrich

溴百里酚蓝 钠盐 溶液

0.04 wt. % in H2O

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经验公式(希尔记法):
C27H27Br2NaO5S
CAS号:
分子量:
646.36
MDL编号:
UNSPSC代码:
12171500
PubChem化学物质编号:
NACRES:
NA.47

形式

liquid

质量水平

浓度

0.04 wt. % in H2O

pH值(酸碱度)

6.0-7.6, yellow to blue

密度

0.99 g/mL at 25 °C (lit.)

λmax

615 nm

ε (消光系数)

≥13000 at 304-310 nm in 0.1 M NaOH at 0.005 g/L
≥8000 at 391-397 nm in 0.1 M NaOH at 0.005 g/L

应用

diagnostic assay manufacturing
hematology
histology

储存温度

room temp

SMILES字符串

[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

一般描述

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.

应用

Bromothymol blue has various applications in biology and medicine. It is suitable for demonstrating fungal hyphae within plant roots. It is used as a vital stain to trace the movement of fluids from the lymph. It is added to an agar gel microbial culture medium for enumeration of Bacillus cereus. Bromothymol blue is also used as a pH indicator due to its precise color transition properties at neutrality.

生化/生理作用

Bromothymol Blue is a pH indicator which changes color from yellow (pH 6.0) to blue (7.6). It belongs to the class of sulfonephthalein dyes.

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


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R. W. Sabnis
Handbook of Acid-Base Indicators (2007)

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