The substance identified as 1,4-Dioxane is classified under the category of Reference Substances for Gas Chromatography (GC), within the broader context of Natural & Reference Materials, Phytochemicals, and Reference substances HPLC/TLC/GC. It falls under the CAS Number 123-91-1 and has a Molecular Weight of 88.11 g/mol. This compound belongs to the Oxygen heterocycles substance group. In the workplace, it is subject to various safety precautions and labels, including Prohibition, No open flame, No admittance for unauthorized persons, No eating and drinking, Warning, Caution - inflammable material, Precept, Use safety goggles, Wear safety gloves, and others. The European Union has recommended an indicative occupational exposure limit value of 73 mg/m3 (20 ppm) for an 8-hour workday. For more detailed information, please

• CAS Number: 123-91-1
• Molecular Formula: C4H8O2
• Molecular Weight: 88.11
• Exact Mass: 88.052429494
• Boiling Point: 214 °F at 760 mmHg (NTP, 1992)
• Melting Point: 53.2 °F (NTP, 1992)
• Vapour Density: 3.03 (NTP, 1992) - Heavier than air; will sink (Relative to Air)
• GHS Signal Word: Danger
• Hazard Statements:
• H225: Highly Flammable liquid and vapor [Danger Flammable liquids]
• H350: May cause cancer [Danger Carcinogenicity]