The substance under consideration is Acetic Acid N -Butyl Ester, a carboxylic acid ester, specifically classified as Butyl Acetate, with a Molecular Weight of 116.16 g/mol. This reference substance falls within the category of chemicals used for Gas Chromatography (GC). It is subject to various workplace regulations, including the use of safety equipment such as goggles and gloves, and the prohibition of open flames and smoking. The recommended occupational exposure limit value for Butyl Acetate is set by Directive 2019/1831/EU, with an 8-hour limit value of 241 mg/m3 (50 ppm) and a short-term limit value of 723 mg/m3 (150 ppm).

• CAS Number: 123-86-4
• Molecular Formula: C6H12O2
• Molecular Weight: 116.16
• Exact Mass: 116.083729621
• Boiling Point: 259.7 °F at 760 mmHg (NTP, 1992)
• Melting Point: -108.2 °F (NTP, 1992)
• Vapour Density: 4 (NTP, 1992) - Heavier than air; will sink (Relative to Air)
• GHS Signal Word: Warning
• Hazard Statements:
• H226: Flammable liquid and vapor [Warning Flammable liquids]
• H225: Highly Flammable liquid and vapor [Danger Flammable liquids]