13115-37-2 137-27-9 28305-25-1 Calcium (S)-2-hydroxypropionate EINECS 248-953-3 Lactic acid, calcium salt (2:1), L- (8CI) NSC 122003 Propanoic acid, 2-hydroxy-, calcium salt (2:1), (2S)- Propanoic acid, 2-hydroxy-, calcium salt (2:1), (S)- (9CI)