Synonyms: Butanedioicacid, 2,3-dihydroxy- (2R,3R)-, calcium salt (1:1), tetrahydrate (9CI);Butanedioic acid, 2,3-dihydroxy- [R-(R*,R*)]-, calcium salt (1:1),tetrahydrate; Calcium tartrate, tetrahydrate (7CI); Tartaric acid, calcium salt(1:1), tetrahydrate (8CI); Calcium (R,R)-tartrate tetrahydrate; CalciumL-tartrate tetrahydrate