Sichuan Tongsheng Amino acid Co., Ltd
L-Pyroglutamic acid
L-Theanine
L-Prolinamide

Products
L- Glutamic acid

Product Name:  L-Glutamic acid                            

CAS#: 56-86-0
Molecular Formula: C5H9NO4
Molecular Weight: 147.13
Specifications: (reference standard:  AJI92)

Item

Standard

Analysis data

Appearance

White or off-white powder

Conforms

Specific Rotation (C=10 in 2N HCl)

+31.5 to +32.2°

+31.86°

Chloride (Cl)

Not more than 0.020%

0.012%

ammonium (NH4)

Not more than 0.020%

<0.02%

sulfate (SO4)

Not more than 0.020%

0.008%

iron(Fe)

Not more than 10ppm

8ppm

Heavy mental (Pb)

Not more than 10ppm

5ppm

Arsenic (As2O3)

Not more than 1ppm

<1ppm

Other amino acid

Not detectable

Conforms

Loss on drying

Not more than 0.20%

0.11%

Residue on ignition

Not more than 0.10%

0.07%

Assay

99.0% to 100.5%

99.5%

pH

3.0 to 3.5

3.2

Inspector:

陈君  王琼   

Manager:

彭秀明

Conclusion

The product is according with standard.


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