ASPARTAME POWDER is N-L-alpha-Aspartyl-L-phenylalanine-1-methyl ester. ASPARTAME POWDER is a white, crystalline powder or granular material that has a sweet taste. ASPARTAME POWDER is sparingly soluble in water and slightly soluble in alcohol. The pH of a 0.8% solution is between 4.5 and 6.0. Niutang Aspartame has a clean, sweet taste that is approximately 200 to 300 times sweeter than sugar.