Thymol Blue sodium

Names

[ Name ]:
Thymol Blue sodium

[Synonym ]:
sodium,4-[3-(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1λ<sup>6</sup>-benzoxathiol-3-yl]-5-methyl-2-propan-2-ylphenolate
MFCD00151093
EINECS 263-650-6
Phenolate, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[5-methyl-2-(1-methylethyl)-, sodium salt (1:1)

Biological Activity

[Description]:

Thymol Blue sodium is an acid-base indicator used to indicate changes in pH. Thymol Blue sodium fades from red to yellow at pH 1.2 to 2.8 and from yellow to blue at pH 8.0 to 9.6[1].

[Related Catalog]:

Research Areas >> Others

Signaling Pathways >> Others >> Others

[References]

[1]. Huining Zhang, et al. Spectrophotometric pH measurements of surface seawater at in-situ conditions: absorbance and protonation behavior of thymol blue. Marine Chemistry,Volume 52, Issue 1,1996, Pages 17-25.

Chemical & Physical Properties

[ Density]:
0.979 g/mL at 25 °C

[ Melting Point ]:
283-285 °C (dec.)(lit.)

[ Molecular Formula ]:
C₂₇H₂₉NaO₅S

[ Molecular Weight ]:
487.564

[ Exact Mass ]:
487.156067

[ PSA ]:
95.04000

[ LogP ]:
7.49120

[ Stability ]:
Stable.

[ Water Solubility ]:
95% ethanol: 10 mg/mL, clear, dark green

MSDS

Click to get detail MSDS

Safety Information

[ Personal Protective Equipment ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ Hazard Codes ]:
Xi

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S24/25

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
3

Precursor & DownStream

Precursor

DownStream

Articles

Experimental correlation between the pKa value of sulfonphthaleins with the nature of the substituents groups.

Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 69(4) , 1235-45, (2008)

This work presents the results obtained from a spectrophotometry study performed on some indicators of the sulfonphtaleins like phenol red (PR), thymol blue (TB), bromothymol blue (BTB), xylenol orang...

Measurement of the association of cholephylic organic anions with different binding proteins.

Biochem. Pharmacol. 34(14) , 2439-44, (1985)

The binding of the colored cholephylic anions tetrabromosulfonphthalein (BSP), di-bromosulfonphthalein (DBSP), indocyanine green (ICG) and thymol blue (ThB) to a number of protein preparations includi...

A new continuous spectrophotometric assay method for DOPA oxidase activity of tyrosinase.

J. Protein Chem. 22(5) , 473-80, (2003)

Sensitive assay methods for tyrosinase are essential not only for the understanding the process of pigment production but also for the development of effective inhibitors of tyrosinase. To develop an ...