The propionate or propanoate ion is C2H5COO− (the conjugate base of propionic acid).

CAS：72-03-7
中文别名：
英文别名：propanoate (ester);(8R)-3-Hydroxy-17c-octanoyloxy-13c-methyl-(8rH.9tH.14tH)-7.8.9.11.12.13.14.15.16.17-decahydro-6H-cyclopenta[a]phenanthren;methyl-acetate;Caprylate d\'oestradiol [French];Estra-1,3,5(10)-triene-3,17beta-diol 17-octanoate;Propionate;3-hydroxyestra-1,3,5(10)-trien-17-yl octanoate;3-n-propanoate;
分子式：C3H5O2-
分子量：73.0706
精确质量：73.029
Psa：40.13
Logp：-0.8537

UNII：AKW5EM890C

沸点：141.7ºC at 760mmHg
熔点：-21.5ºC
闪点：57.7ºC