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L-Aspartic Acid

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INTRODUCTION
Parameters

Product

L-Aspartic acid

CAS No.

56-84-8

Chemical Structure

C4H7NO4

Formula Weight

133.10

Structural Formula

Quality Standard

AJI97

Packing

25kg paper bag with inner PE bag

Shelf Life

2 Years

Preserve in original packing and protected from light

Specifcation

Standard

Appearance

White crystals or crystalline powder

Assay(On dry basis)

98.5~100.5%

Specific rotation[α]D20

+24.80~+25.80

Loss on drying

≤0.20%

Chloride(Cl-)

≤0.02%

Iron(Fe)

≤0.001%

Transmittance

≥98.0%

Sulfate(SO42-)

≤0.02%

Residue on ignition

≤0.1%

Heavy metals(As Pb)

≤0.001%

Ammonium(NH4+)

≤0.02%

Arsenic (As2O3)

≤0.0001%

PH

2.5~3.5

Other amino acids

Chromatographically not detectable

 

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