2H-Pyran-4-acetic acid, 3-formyl-3,4-dihydro-5-(methoxycarbonyl)-2-methyl-, calcium salt (2:1), (2S-(2alpha,3alpha,4beta))- 2H-Pyran-4-acetic acid, 5-carboxy-3-formyl-3,4-dihydro-2-methyl-, 5-methyl ester, calcium salt 34421-75-5 38164-87-3 Calcium elenolate Elenolate calcium