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Merck

31659

Supelco

o-Tolidine

analytical standard

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:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

analytical standard

Quality Level

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

mp

128-131 °C (lit.)

application(s)

cleaning products
cosmetics
food and beverages
personal care

format

neat

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 widely used in the aniline dye industry for the synthesis of different azo dyes.

Application

o-Tolidine (3,3′-dimethylbenzidine) may be used as an analytical reference standard for the determination of the analyte formed from azo colorants in toy products by high-performance liquid chromatography with UV detection.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
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

dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges


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Certificados de análisis (COA)

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Carcinogenic properties of orthotolidine (3, 3?-dimethylbenzidine).
Pliss GB and Zabezhinsky MA
Journal of the National Cancer Institute, 45(2), 283- 295 (1970)
Shinpei Kawarai et al.
The Journal of veterinary medical science, 72(2), 131-140 (2009-11-27)
It is essential to develop a technique to culture purified skin-derived mast cells (SMCs) to facilitate immunological research on allergic diseases in dogs. This study was performed to develop an efficient culture system for canine SMCs and to characterize the
Determination of aromatic amines formed from azo colorants in toy products.
Garrigos MC
Journal of Chromatography A, 976(1-2), 309-317 (2002)
A J Elberger et al.
Journal of neuroscience methods, 45(3), 227-238 (1992-12-01)
Studies of pathway microcircuitry often require electron microscope analysis. To facilitate these analyses, methods for labeling cells in their entirety are extremely useful. Furthermore, such a method would be most useful if the label would be completely confined by the
Zhijun Cao et al.
Biosensors & bioelectronics, 23(3), 348-354 (2007-06-06)
The electrooxidation of o-tolidine (oTD) was investigated via the electrochemical quartz crystal microbalance (EQCM) technique. The formation and breakage of the poorly soluble charge-transfer complex (CTC) occurred during the redox switching of oTD, and the CTC precipitation on and its

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