Name：4-[3-(3-Carboxy-propoxy)-2-(3-carboxy-propoxymethyl)-2-prop-2-ynyloxymethyl-propoxy]-butyric acid

C20H32O10

Exact Mass: 432.20

Mol. Wt.: 432.46

m/e: 432.20 (100.0%), 433.20 (22.6%), 434.21 (2.6%), 434.20 (2.0%)

C, 55.55; H, 7.46; O, 37.00

参考路线如图所示