Zinc glycinate

Zinc glycinate refers to compounds of Zn²⁺ with various amounts of glycinate anion as a ligand. A well-characterized derivative has the formula Zn(H₂NCH₂CO₂)₂·H₂O. It arises by treating zinc oxide with glycine. According to X-ray crystallography, the solid is a coordination polymer with one water of crystallization per formula unit.^[1]

Quick facts Names, Identifiers ...

Zinc glycinate

Names
Other names zinc bis(glycinate) monohydrate
Identifiers
CAS Number	14281-83-5 Y
3D model (JSmol)	Interactive image
ChemSpider	133891
DrugBank	DB14493
ECHA InfoCard	100.034.687
EC Number	238-173-1
PubChem CID	151910
UNII	681VJX72FE
CompTox Dashboard (EPA)	DTXSID60162193
InChI InChI=1S/2C2H5NO2.Zn/c2*3-1-2(4)5;/h2*1,3H2,(H,4,5);/q;;+2/p-2 Key: UOXSXMSTSYWNMH-UHFFFAOYSA-L
SMILES C(C(=O)[O-])N.C(C(=O)[O-])N.[Zn+2]
Properties
Chemical formula	C4H8N2O4Zn
Molar mass	213.50 g·mol−1
Appearance	white solid
Density	1.99 g/cm3
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H315, H318, H400
Precautionary statements	P264, P264+P265, P270, P273, P280, P301+P317, P302+P352, P305+P354+P338, P317, P321, P330, P332+P317, P362+P364, P391, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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Other zinc-glycinates exist in aqueous solution including 1:1 and 1:3 species. The latter is the octahedral anion Zn(H₂NCH₂CO₂)−3.^[2][3]

The compound, which is classified as one of the transition metal amino acid complexes, is marketed as a nutritional supplement.