31629

o-Aminoazotoluene

analytical standard

• Synonym(s): 4′-Amino-2,3′-dimethylazobenzene, Solvent Yellow 3
• Linear Formula: CH₃C₆H₄N=NC₆H₃(CH₃)NH₂
• CAS Number: 97-56-3
• Molecular Weight: 225.29
• Beilstein/REAXYS Number: 6506005
• EC Number: 202-591-2
• MDL number: MFCD00007733
• UNSPSC Code: 41116107
• PubChem Substance ID: 329753852
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• shelf life: limited shelf life, expiry date on the label
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• mp: 101-102 °C (lit.)
• application(s): cleaning products; cosmetics; environmental; food and beverages; personal care
• format: neat
• SMILES string: Cc1ccccc1\N=N\c2ccc(N)c(C)c2
• InChI: 1S/C14H15N3/c1-10-5-3-4-6-14(10)17-16-12-7-8-13(15)11(2)9-12/h3-9H,15H2,1-2H3/b17-16+
• InChI key: PFRYFZZSECNQOL-WUKNDPDISA-N

Description

General description

o-Aminoazotoluene (AAT) is categorized as a Class 2B carcinogen by the international agency for research on cancer (IARC). This class of azo dyes are widely used as colorants in a variety of products including leather, cosmetics, paper, toys, plastics, pharmaceuticals, textiles, paints, food, leather, etc. Primary aromatic amines (PAAs) are most commonly used as starting compounds in the production of azo dyes and can often migrate into foodstuffs from food packaging materials. AAT finds applications in coloring oils, fats, and waxes.

o-Aminoazotoluene (AAT) is a carcinogenic primary amino azo dye.1

Application

o-Aminoazotoluene may be used as an analytical reference standard for the quantification of the analyte in:

• Dyes, cosmetics, inks and finger paints using liquid chromatography coupled to mass spectrometry (LC-MS).
• Commercial samples including food packaging plastic, multilayer plastic laminates and recycled paperboard categories using liquid chromatography coupled to mass spectrometry (LC-MS) technique.

AAT has been used as reference standard in determination of aromatic amines from azo colorants in toys using HPLC.2

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Caution

Restricted to professional users. Attention − Avoid exposure − obtain special instructions before use.

Safety Information

• pictograms: GHS06,GHS08
• signalword: Danger
• hcodes: H301,H315,H317,H319,H350
• pcodes: P201 - P202 - P280 - P301 + P310 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Oral - Carc. 1B - Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1
• Storage Class: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges