1,2-PropanediolPROPYLENE GLYCOLpropane-1,2-diol丙二醇丙二醇Propylene glycol1,2-丙二醇Propylene Glycol1,2-丙二醇1,2-PropanediolPolypropylene glycol 2000(+/-)-Propylene glycol聚丙二醇 2,0001,2-Propyleneglycol聚丙二醇 4,000(±)-Propylene glycolPropylenglycolum1,2-Propanediol1,2-Propanediol, ACS1,2-Dihydroxypropane1,2-丙二醇, ACSPolypropylene glycol 4,000聚丙二醇 3,000Polypropylene glycol 3,000聚丙二醇 1000Polypropylene glycol 1,000(S)-(+)-1,2-PROPANEDIOLPROPYLENE GLYCOL, ACS GRADEmethyl ethyl glycol (MEGlDowfrostα-propylene glycolPlPolypropylene glycol 400聚丙二醇 400methylethylene glycol1,2-DihydroxypropanlSirlenl1,2-Propylenglykolmethylethylene glycolalpha-propyleneglycolmonopropylene glycolHOCH2CH(OH)CH3Propylene glycolmethyl glycolPropane-1,2-diolpropane-1,2-diolPPD1,2-dihydroxypropaneHOCH2CH(OH)Memethylethyl glycolCH3CH(OH)CH2OHMeCH(OH)CH2OH1,2-Propanediol2-hydroxypropanolisopropylene glycol