Lauroyl arginate ethyl

Ethyl lauroyl arginate is synthesized by esterifying arginine with ethanol, followed by reacting the ester with lauroyl chloride. The resultant ethyl lauroyl arginate is recovered as hydrochloride salt and is a white, solid product which is filtered off and dried. The active ingredient is the hydrochloride salt of ethyl-Nα -lauroyl-L-arginate (ethyl-Nα -dodecanoyl-L-arginate·HCl, CAS number *********2) and its molecular weight is **1.*2. The content of ethyl-Nα -lauroyl-L-arginate is between ****5%. Ethyl lauroyl arginate is a white powder and its solubility in water at *0ºC is greater than **7 g/kg. It is stable for more than 2 years at room temperature when protected in a closed container. This substance is intended to be used as preservative for its anti-microbial activity. The synonyms are lauric arginate ethyl ester, lauramide arginine ethyl ester, LAE and INS No. **3.