with the cosmetics field being its largest demand end.

sodium pyrrolidone carboxylate, also known as sodium pca, sodium l-pyrrolidone-5-carboxylate, and sodium pyroglutamate, has a chemical formula of c5h6o3nna and is an amino acid derivative. sodium pca appears as a colorless or slightly yellow transparent liquid with no special smell. it is soluble in water and ethanol, but insoluble in oil. sodium pca has the…