Chemical Name:N-L-a-Aspartyl-L-phenylalanine-Methyl ester Chemical Formula:C14H18N2O5 Molar weight:294.31 Appearance:a white, odorless, crystalline power granular sweetener having a sweet taste,same as sucrose, fresh and tasty. Appearance Whitepowderorcrystalline Assay 98-102% SpecificRotation[a]20D +14.5 +16.5 transmittance ≥95% LossonDrying1054hr ≤4.5% ResidueonIgnition(Sulfated) ≤0.2% PH 4.5-6.0 ArsenicAs ≤3ppm HeavyMetals(Pb) ≤10ppm LossonDrying ≤0.2% OtherRelatedSubstance ≤2.0% Diketopiperazine(5-Benzy1-3,6-Dioxo-2-PiperazineaceticAcid) ≤1.5% Storage: store under dry and cool condition, and keep product air-tight.