pyridazine-3,6-dicarboxylic acid dimethyl ester

[6-(hydroxymethyl)pyridazin-3-yl]methanol

2,5-己二酮

acetic acid,[5-(hydroxymethyl)furan-2-yl]methanol

(2,5-dimethoxy-2,5-dihydrofuran-2,5-diyl)bis(methylene) diacetate