89610

o-Toluidine

purum p.a., ≥99.5% (GC)

• Synonym(s): 2-Aminotoluene, 2-Methylaniline
• Linear Formula: CH₃C₆H₄NH₂
• CAS Number: 95-53-4
• Molecular Weight: 107.15
• Beilstein/REAXYS Number: 741981
• EC Number: 202-429-0
• MDL number: MFCD00007730
• UNSPSC Code: 12352100
• PubChem Substance ID: 329769755
• NACRES: NA.22

Properties

• vapor density: 3.7 (vs air)
• Quality Level: 100
• vapor pressure: 0.26 mmHg ( 25 °C)
• grade: purum p.a.
• assay: ≥99.5% (GC)
• form: liquid
• autoignition temp.: 899 °F
• impurities: ≤0.1% water; ≤0.5% m- and p-toluidine (GC)
• ign. residue: ≤0.01% (as SO₄)
• refractive index: n20/D 1.572 (lit.); n20/D 1.572
• bp: 199-200 °C (lit.); 89-90 °C/11 mmHg (lit.)
• mp: −28 °C (lit.)
• solubility: H₂O: slightly soluble
• density: 1.008 g/mL at 25 °C (lit.)
• cation traces: Ca: ≤5 mg/kg; Cd: ≤1 mg/kg; Co: ≤1 mg/kg; Cr: ≤1 mg/kg; Cu: ≤1 mg/kg; Fe: ≤1 mg/kg; K: ≤20 mg/kg; Mg: ≤1 mg/kg; Mn: ≤1 mg/kg; Na: ≤20 mg/kg; Ni: ≤1 mg/kg; Pb: ≤1 mg/kg; Zn: ≤1 mg/kg
• SMILES string: Cc1ccccc1N
• InChI: 1S/C7H9N/c1-6-4-2-3-5-7(6)8/h2-5H,8H2,1H3
• InChI key: RNVCVTLRINQCPJ-UHFFFAOYSA-N

Description

General description

o-Toluidine belongs to the class of monocyclic aromatic amines, which are of research and industrial importance. It can be used as a derivatization agent for the resolution of analytes by the formation of chromophores, which can be visualized by UV radiation or fluorescence.

Application

o-Toluidine may be used as a TLC Visualization (Staining) Reagent for the detection of reducing sugars in protein hydrolysates by using high-performance thin-layer chromatography (HPTLC) coupled with UV diffuse reflectance scanning densitometry.

Caution

may discolor on storage

Safety Information

• pictograms: GHS06,GHS08,GHS09
• signalword: Danger
• hcodes: H301 + H331,H319,H350,H410
• pcodes: P202 - P261 - P273 - P301 + P310 - P304 + P340 + P311 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 2 - Carc. 1B - Eye Irrit. 2
• Storage Class: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• wgk_germany: WGK 3
• flash_point_f: 185.0 °F - closed cup
• flash_point_c: 85 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter