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Merck

T8533

Sigma-Aldrich

o-Tolidine

≥95% purity, powder or chunks

Sinónimos:

3,3′-Dimethylbenzidine, 4,4′-Bianisidine

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About This Item

Fórmula lineal:
[-C6H3(CH3)-4-NH2]2
Número de CAS:
Peso molecular:
212.29
Beilstein/REAXYS Number:
2210640
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

product name

o-Tolidine, ≥95%

Quality Level

assay

≥95%

form

powder or chunks

color

white to light brown

mp

128-131 °C (lit.)

solubility

water: slightly soluble 1.3 g/L at 25 °C

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Cc1cc(ccc1N)-c2ccc(N)c(C)c2

InChI

1S/C14H16N2/c1-9-7-11(3-5-13(9)15)12-4-6-14(16)10(2)8-12/h3-8H,15-16H2,1-2H3

InChI key

NUIURNJTPRWVAP-UHFFFAOYSA-N

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General description

o-Tolidine is a diacidic dye which is sparingly soluble in water and easily soluble in ether and alcohol. On exposure to chlorine or bromine vapors, it forms an intense blue color. This forms the basis for detection of chlorine, nitrates and hydrogen peroxide in air or water. It turns yellow on reacting with free chlorine. o-Tolidine easily forms acid salts.

Application

o-Tolidine has also been used to determine the presence of laccase activity in T. versicolor fungal colonies.
Reactivo colorimétrico sensible para oro y cloro libre en agua.

Warning

Puede ser cancerígeno.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Carc. 1B

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 3

flash_point_f

212.0 °F - closed cup

flash_point_c

100 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Visite la Librería de documentos

Leo M.L. Nollet
Handbook of Water Analysis (2013)
Purification and Characterization of Laccase from the
White Rot Fungus Trametes versicolor
Moon-Jeong
Journal of Microbiology (2005)
Wiley-VCH
Ullmann's Fine Chemicals null
Yunjung Kim et al.
FEMS microbiology letters, 284(2), 172-175 (2008-05-28)
A white-rot basidiomycete, Phlebia tremellosa, produced a laccase that showed increased activity during degradation of phthalates. A laccase was purified through the ion exchange chromatography and preparative gel electrophoresis, and the estimated molecular weight was 75 kDa. The optimum pH
K L Woods et al.
Alimentary pharmacology & therapeutics, 10(3), 333-337 (1996-06-01)
Mucosal bleeding is frequently used as a measure of gastric mucosal integrity. We compared the orthotolidine method for quantifying haemoglobin in gastric juice with a method based on measurement of fluorescent porphyrins extracted from haem. We also investigated whether acid

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