Calcium lactate

Calcium lactate
	Calcium L-lactate
Names
	Preferred IUPAC name Calcium bis(2-hydroxypropanoate)
	Other names calcium lactate 5-hydrate; calcium lactate; 2-hydroxypropanoic acid; calcium salt pentahydrate;
Identifiers
CAS Number	814-80-2 ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL2106111 ;
ChemSpider	12592 ;
DrugBank	DB13231;
ECHA InfoCard	100.011.278
EC Number	212-406-7;
E number	E327 (antioxidants, ...)
PubChem CID	13144;
UNII	2URQ2N32W3 ;
CompTox Dashboard (EPA)	DTXSID0020236 ;
	InChI InChI=1S/2C3H6O3.Ca/c21-2(4)3(5)6;/h22,4H,1H3,(H,5,6);/q;;+2/p-2 Key: MKJXYGKVIBWPFZ-UHFFFAOYSA-L ; InChI=1/2C3H6O3.Ca/c21-2(4)3(5)6;/h22,4H,1H3,(H,5,6);/q;;+2/p-2 Key: MKJXYGKVIBWPFZ-NUQVWONBAM;
	SMILES [Ca+2].[O-]C(=O)C(O)C.[O-]C(=O)C(O)C;
Properties
Chemical formula	C6H10CaO6
Molar mass	218.22 g/mol
Appearance	white or off-white powder, slightly efflorescent
Density	1.494 g/cm3
Melting point	240 °C (464 °F; 513 K) (anhydrous) ; 120 °C (pentahydrate)
Solubility in water	L-lactate, anhydrous, g/100 mL: 4.8 (10 °C), 5.8 (20 °C), 6.7 (25 °C), 8.5 (30 °C); 7.9 g/100 mL (30 °C)
Solubility	very soluble in methanol, insoluble in ethanol
Acidity (pKa)	6.0-8.5
Refractive index (nD)	1.470
Pharmacology
ATC code	A12AA05 (WHO)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H319
Precautionary statements	P264, P280, P305+P351+P338, P337+P313
NFPA 704 (fire diamond)	1 0 0
Flash point	Not applicable
Autoignition; temperature	No data
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Calcium lactate is a white crystalline salt with formula C
₆H
₁₀CaO
₆, consisting of two lactate anions H
₃C(CHOH)CO⁻
₂ for each calcium cation Ca²⁺
. It forms several hydrates, the most common being the pentahydrate C
₆H
₁₀CaO
₆·5H
₂O.

Calcium lactate is used in medicine, mainly to treat calcium deficiencies; and as a food additive with E number of E327. Some cheese crystals consist of calcium lactate.

Names
Calcium L-lactate
Preferred IUPAC name Calcium bis(2-hydroxypropanoate)
Other names calcium lactate 5-hydrate calcium lactate 2-hydroxypropanoic acid calcium salt pentahydrate
Identifiers
CAS Number	814-80-2^Y
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL2106111^Y
ChemSpider	12592^Y
DrugBank	DB13231
ECHA InfoCard	100.011.278
EC Number	212-406-7
E number	E327 (antioxidants, ...)
PubChem CID	13144
UNII	2URQ2N32W3^Y
CompTox Dashboard (EPA)	DTXSID0020236
InChI InChI=1S/2C3H6O3.Ca/c21-2(4)3(5)6;/h22,4H,1H3,(H,5,6);/q;;+2/p-2^Y Key: MKJXYGKVIBWPFZ-UHFFFAOYSA-L^Y InChI=1/2C3H6O3.Ca/c21-2(4)3(5)6;/h22,4H,1H3,(H,5,6);/q;;+2/p-2 Key: MKJXYGKVIBWPFZ-NUQVWONBAM
SMILES [Ca+2].[O-]C(=O)C(O)C.[O-]C(=O)C(O)C
Properties
Chemical formula	C₆H₁₀CaO₆
Molar mass	218.22 g/mol
Appearance	white or off-white powder, slightly efflorescent
Density	1.494 g/cm³
Melting point	240 °C (464 °F; 513 K) (anhydrous) 120 °C (pentahydrate)
Solubility in water	L-lactate, anhydrous, g/100 mL: 4.8 (10 °C), 5.8 (20 °C), 6.7 (25 °C), 8.5 (30 °C); 7.9 g/100 mL (30 °C)
Solubility	very soluble in methanol, insoluble in ethanol
Acidity (pK_a)	6.0-8.5
Refractive index (n_D)	1.470
Pharmacology
ATC code	A12AA05 (WHO)
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H319
Precautionary statements	P264, P280, P305+P351+P338, P337+P313
NFPA 704 (fire diamond)	1 0 0
Flash point	Not applicable
Autoignition temperature	No data
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references