The Formic acid, magnesiumsalt (2:1), with CAS registry number 557-39-1, has the systematic name of magnesium diformate. Its classification code is TSCA Flag P [A commenced PMN (Premanufacture Notice) substance]. This chemical should be stored at the temperature of 2-8°C. When use this chemical, do not breathe vapour and avoid contact with skin and eyes. And the chemical formula of this chemical is C₂H₂MgO₄. What's more, its EINECS is 209-173-9.

Physical properties of Formic acid, magnesiumsalt (2:1): (1)ACD/LogP: -0.54; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -2.3; (4)ACD/LogD (pH 7.4): -3.94; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 37.3 Å²; (13)Flash Point: 29.9 °C; (14)Enthalpy of Vaporization: 22.69 kJ/mol; (15)Boiling Point: 100.6 °C at 760 mmHg; (16)Vapour Pressure: 36.5 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: [Mg+2].[O-]C=O.[O-]C=O
(2)InChI: InChI=1/2CH2O2.Mg/c2*2-1-3;/h2*1H,(H,2,3);/q;;+2/p-2
(3)InChIKey: GMDNUWQNDQDBNQ-NUQVWONBAS
(4)Std. InChI: InChI=1S/2CH2O2.Mg/c2*2-1-3;/h2*1H,(H,2,3);/q;;+2/p-2
(5)Std. InChIKey: GMDNUWQNDQDBNQ-UHFFFAOYSA-L