propane-1,2-diol1,2-Propanediol1,2-Propylenglykol1,2-dihydroxypropane2-hydroxypropanolCH3CH(OH)CH2OHHOCH2CH(OH)CH3HOCH2CH(OH)MeMeCH(OH)CH2OHPPDPropane-1,2-diolPropylene glycolalpha-propyleneglycolisopropylene glycolmethyl glycolmethylethyl glycolmethylethylene glycolmonopropylene glycolpropane-1,2-diol