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Merck
CN

861367

Thymol Blue sodium salt

ACS reagent, Dye content 95 %

Synonym(s):

Thymolsulfonphthalein sodium salt

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About This Item

Empirical Formula (Hill Notation):
C27H29NaO5S
CAS Number:
62625-21-2
Molecular Weight:
488.57
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
24888538
EC Number:
263-650-6
Beilstein/REAXYS Number:
3861515
MDL number:
MFCD00151093

Key Documents

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InChI key

BAVBEHWEOJMHDS-UHFFFAOYSA-M

InChI

1S/C27H30O5S.Na/c1-15(2)19-13-22(17(5)11-24(19)28)27(21-9-7-8-10-26(21)33(30,31)32-27)23-14-20(16(3)4)25(29)12-18(23)6;/h7-16,28-29H,1-6H3;/q;+1/p-1

SMILES string

[Na+].CC(C)c1cc(c(C)cc1O)C2(OS(=O)(=O)c3ccccc23)c4cc(C(C)C)c([O-])cc4C

grade

ACS reagent

form

powder or crystals

composition

Dye content, 95%

clarity of soln

passes test

visual transition interval

1.2-2.8, red to yellow(acid range), 8.0-9.2, yellow to blue(alkaline range)

mp

283-285 °C (dec.) (lit.)

λmax

378 nm (2nd), 590 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

200

Related Categories

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS7725
SHBQ3241
MKCL3532
MKCF4131
MKBX7879V

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Kanakapura Basavaiah et al.
Anais da Academia Brasileira de Ciencias, 80(2), 253-262 (2008-05-29)
Four sensitive and rapid methods for the determination of stavudine (STV) in bulk drug and in dosage forms were developed and optimized. In titrimetry, aqueous solution of STV was treated with a known excess of bromate-bromide in HCl medium followed
P Balderas-Hernández et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 66(1), 68-73 (2006-07-11)
This paper presents the results concerning the determination of the formation constants of the complexes between thymol blue, TB, and the metal ions Pb(II) or Cd(II). The experimental procedure was carried out in the presence of a nitrogen atmosphere at
N Gayathri et al.
Journal of AOAC International, 84(4), 1065-1069 (2001-08-15)
A simple and sensitive spectrophotometric method was developed for the determination of trace amounts of sulfur dioxide. The method is based on the reaction of SO2 with a known excess of ICI as the oxidant. The unreacted ICI iodinates thymol
Shangjie Xu et al.
Macromolecular bioscience, 7(8), 968-974 (2007-08-01)
A simple general synthetic concept to build dendritic core-shell architectures with pH-labile linkers based on hyperbranched PEI cores and biocompatible PEG shells is presented. Using these dendritic core-shell architectures as nanocarriers, the encapsulation and transport of polar dyes of different
Yong-Doo Park et al.
Journal of protein chemistry, 22(5), 473-480 (2003-12-24)
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 efficient assay method, we applied thymol blue to reaction mixtures.
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