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

Products
DL-Pyroglutamic acid

Product Name: H-DL-Pyr-OH
CAS#: 149-87-1
Synonyms: DL-Pyroglutamic acid
Molecular Formula: C5H7NO3
Molecular Weight: 129
Specification: (Reference Standard: AJI92)

Items

Standard

Analysis data

Appearance

White crystalline powder

Conforms

Melting Point(ºC)

180.0 to 182.0ºC

181.7℃

Chloride(C1)

Not more than0.02%

<0.02%

Ammonium(NH4)

Not more than0.02%

<0.02%

Sulfate(SO4).

Not more than 0.02%

<0.02%

Heavy metals(Pb)

Not more than 10ppm

<10ppm

Iron(Fe)

Not more than 10ppm

<10ppm

Arsenic(As2O3)

Not more than 1ppm

<1ppm

Loss on drying

Not more than 0.50%

0.25%

Residue on ignition

Not more than0.1%

0.09%

Assay

98.0-101.0%

99.24%

Conclusion

The product is according with standard.


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