[建] propylene glycol methyl ether, propylene glycol monomethyl ether
bǐng èr chún dān jiǎ mí ㄅㄧㄥˇ ㄦˋ ㄔㄨㄣˊ ㄉㄢ ㄐㄧㄚˇ ㄇㄧˊ