Acetic acid methyl ester

The chemical substance under discussion is Methyl Acetate (C3H6O2), a reference material used primarily in Gas Chromatography (GC). It has a molecular weight of 74.08 g/mol and an exact mass of 74.036779430 u. This compound is known to have a Boiling Point of 134.4°F at standard pressure and a Melting Point of -144°F. Due to its high flammability, it is classified as a danger material according to the Globally Harmonized System of Classification and Labelling of Chemicals (GHS).

• CAS Number: 79-20-9
• Molecular Formula: C3H6O2
• Molecular Weight: 74.08
• Exact Mass: 74.036779430
• Boiling Point: 134.4 °F at 760 mmHg (NTP, 1992)
• Melting Point: -144 °F (NTP, 1992)
• Vapour Density: 2.8 (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]