The chemical substance titled O-Xylene is categorized as a Reference Substance for Gas Chromatography (GC). It belongs to the group of Hydrocarbons, Aromatic, and its CAS Number is 95-47-6. In the workplace, this substance requires specific handling due to its flammability, necessitating the use of safety equipment such as safety goggles and gloves, and prohibiting open flames, open ignition sources, and smoking. The recommended indicative occupational exposure limit value for O-Xylene, according to Directive 2000/39/EC, is 8 hours limit value: 221 mg/m3 (50 ppm), and short term limit value: 442 mg/m3 (100 ppm).

• CAS Number: 95-47-6
• Molecular Formula: C14H17N5O3
• Molecular Weight: 303.32
• Exact Mass: 303.13313942
• Melting Point: 253 - 255 °C
• GHS Signal Word: Danger
• Hazard Statements:
• H317 (97.6%): May cause an allergic skin reaction [Warning Sensitization, Skin]