Name: 2-Acetoxymethyl-2,3-dihydro-thieno[3,4-b][1,4]dioxine-5,7-dicarboxylic acid dimethyl ester

SMILES: COC(=O)c1sc(C(=O)OC)c2c1OCC(COC(C)=O)O2

Molecular formula: C13H14O8S

Molecular weight: 330.04