Item

Standard

Appearance:

White granular or powder

Assay(On dry basis):

98.00-102.00%

Taste:

Pure

Specific rotation:

+14.50°~+16.50°

Transmittance:

95.0% min

Loss on drying:

4.50% max

Residue on ignition:

0.20% max

L-a-Aspartyl-L-Phenylalanine:

0.25% max

PH:

4.5-6.0

L-Phenylalanine:

0.50% max

Heavy metals (as Pb):

10ppm max

Arsenic (AS):

3ppm max

5-benzyl-3,6-dioxo-2piperazineacetic acid

1.5% max

Other related substances:

2.0% max