Aspartame

Its chemical formula is C4H4KNO4S and is used in chewing gum, desserts, candies, etc.

Item

Standard

Result

Appearance Odorless, sweet and white crystalline powder
Identification Conform Conform
Assay 98.0% ~ 102.0% 98.54%
Specific rotation +14.5°~ + 16.5° +14.65°
Transmittance ≥95.0 % 98.60%
Loss on drying ≤ 4.5% 3.67%
Residue on ignition ≤ 0.2% 0.06%
Diketopiperazine ≤ 1.0% 0.01%
L-α-aspartyl-L-phenylalanine ≤ 0.25% 0.09%
L-phenylalanine ≤ 0. 5% Not Found
Other related substances ≤ 2.0% 0.60%
Appearance of solution Conform to EP Conform
Heavy metals (as Pb) ≤ 10ppm < 5ppm
Lead ≤ 1ppm < 1ppm
Arsenic ≤ 3ppm < 2ppm
Conductivity ≤ 30μs/cm 16.58μs/cm
pH 4.5 ~ 6.0 5.12

 

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