Methyl Aceto Acetate

Methyl Aceto Acetate

CAS Number: 105‑45‑3

Chemical Formula:C₅H₈O₃

Product Introduction

A pale, clear liquid with a pleasant aroma, MAA is the methyl ester of acetoacetic acid. It's a go-to intermediate in organic synthesis — especially for heterocycles and pharmaceuticals

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Quick Comparison

Feature Methanol Methyl Acetoacetate (MAA)
Form Clear liquid Clear pale liquid
Main Role Solvent, fuel, chemical feedstock Organic intermediate, heterocycle precursor
Flammability High (flash ~10 °C) Moderate (flash ~70 °C)
Health Risks Highly toxic; causes blindness Combustible; irritant; possible genotoxin
Storage Flammable storage cabinets Cool, sealed flammable-liquid storage

Key Properties

  • Melting/Boiling point: −80 °C / 169–170 °C (at reduced pressure)
  • Density: ≈1.076–1.08 g/mL @ 20°C
  • Flash point: ~67–72 °C or 72 °C
  • Vapor pressure: ~1 hPa @ 20 °C
  • Solubility: ~863 g/L in water (weakly acidic)
  • Hazards: Combustible, causes eye irritation, suspected of genetic toxicity

Applications

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