二十碳-11-烯-14-炔酸 Isocyanicacid,polymethylenepolyphenyleneester,polymerwithalpha-hydro-omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))etherwith2-ethyl-2-(hydroxymethyl)-1,3-propanediol(3:1)andmethyloxiranepolymerwithoxiraneetherwith2-ethyl-2-(hydroxymethyl)

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