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114545

Sigma-Aldrich

Thymol Blue

ACS reagent

Sinonimo/i:

Thymolsulfonphthalein

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About This Item

Formula empirica (notazione di Hill):
C27H30O5S
Numero CAS:
Peso molecolare:
466.59
Beilstein:
368036
Numero CE:
Numero MDL:
Codice UNSPSC:
12171500
ID PubChem:
NACRES:
NA.47

Grado

ACS reagent

Livello qualitativo

Stato

powder

Limpidezza della soluzione

passes test

tecniche

titration: suitable

visual transition interval

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

Punto di fusione

221-224 °C (dec.) (lit.)

Solubilità

ethanol: 0.1%, clear

Densità

0.979 g/cm3

λmax

376 nm (2nd)
594 nm

ε (coefficiente d’estinzione)

≥12000 at 298-302 nm in 0.1 M NaOH at 0.01 g/L

applicazioni

diagnostic assay manufacturing
hematology
histology

Temperatura di conservazione

room temp

Stringa SMILE

CC(C)c1cc(c(C)cc1O)C2(OS(=O)(=O)c3ccccc23)c4cc(C(C)C)c(O)cc4C

InChI

1S/C27H30O5S/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
PRZSXZWFJHEZBJ-UHFFFAOYSA-N

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Descrizione generale

Thymol Blue is a sulfonephthalein dye. It is also known as thymolsulfonphthalein.

Applicazioni

Thymol Blue has been used for the in situ spectrophotometric pH measurement.

Azioni biochim/fisiol

Thymol Blue is a pH indicator, which is yellow/orange at low pH and blue in color at high pH.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


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I clienti hanno visto anche

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Global stability for convection induced by absorption of radiation.
Straughan B
Dynamics of atmospheres and oceans, 35, 351-361 (2002)
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.
J G Eley et al.
The Journal of pharmacy and pharmacology, 41(12), 858-860 (1989-12-01)
The interaction of low density lipoprotein (LDL) with two model dyes in the presence or absence of non-ionic surfactants has been studied. The water soluble dye, thymol blue, only weakly interacts with LDL to cause slight increases in particle size
Naoki Hirayama et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 28(6), 541-543 (2012-06-26)
The use of a hydrophilic ionic liquid (IL), 1-butyl-3-methylimidazolium chloride (C(4)mimCl), as a salting-out phase separation agent to a water-tetrahydrofuran homogeneous system was studied for possible applications to novel aqueous biphasic extraction separation. The IL showed a salting-out phase-separation ability.
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

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