Propionic acid ≥99,5 %, for synthesis

Empirical formula C₃H₆O₂
Molar mass (M) 74,08 g/mol
Density (D) 0,99
Boiling point (bp) 141-142 °C
Flash point (flp)52 °C • Melting point (mp)-20 °C
Solubility 370 g/l (H₂O, 20 °C)
ADR 8 (3) II • WGK 1
CAS No.[79-09-4]
EG-Nr. 201-176-3 • UN-Nr. 3463

In botany propionic acid is used as a fixative in chromosome assays. It replaces glacial acetic acid in alcoholic fixing mixtures.