calcium citrate malate calcium citrate malate calcium citrate malate is a water-soluble calcium supplement. it is the calcium salt of citric acid and malic acid with variable composition. calcium citrate malate identifiers cas number 142606-53-9 y 3d model (jsmol) interactive image echa infocard 100.127.532 ec number 604-299-4 pubchem cid 8674688592043277 unii 4bbs3a53gj y comptox dashboard (epa) dtxsid00931542 inchi inchi=1s/c10h12o11.c6h8o7.3ca/c11-4(1-5(12)13)8(18)21-10(9(19)20,2-6(14)15)3-7(16)17;7-3(8)1-6(13,5(11)12)2-4(9)10;;;/h4,11h,1-3h2,(h,12,13)(h,14,15)(h,16,17)(h,19,20);13h,1-2h2,(h,7,8)(h,9,10)(h,11,12);;;/q;;3*+2/p-6key: miodseircyrwju-uhfffaoysa-h smiles c(c(c(=o)oc(cc(=o))(cc(=o))c(=o))o)c(=o)o.c(c(=o))c(cc(=o))(c(=o))o... properties chemical formula (c6h7o7)x·(c4h5o5)y·(ca2+)z molar mass variable appearance white solid except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). n verify (what is yn ?) infobox references calcium citrate malate's bioavailability stems from its water-solubility and its method of dissolution. when dissolved, it releases calcium ions and a calcium citrate complex. calcium ions are absorbed directly into intestinal cells, and the citrate complex enters the body through paracellular absorption. calcium citrate malate is similar to calcium malate and other calcium salts. the european food safety authority has concluded that calcium citrate malate is "slightly more bioavailable" than other forms of calcium supplementation.