Contact:Xian Jun
Tel:+86-28-37496355
Mobile:+86-13378369793
+86-13378369793
Fax:+86-28-37496355
Add:Group Ten, Qianjin Village, Jiangjun Town, HOngya County, Sichuan, China
E-mail:yaxing@yx-aminoacid.com
Chemical Name: DL-Pyroglutamic acid; DL-2-Pyrrolidone-5-carboxylic acid;
English Name:DL-Pyroglutamic acid; DL-2-Pyrrolidone-5-carboxylic acid; DL-5-Oxo-2-pyrrolidinecarboxylic acid;
Molecular Formula:C5H7NO3;
Molecular Weight:129.11;
Products Content:99.1%;
Standard:AJI/USP/FCC/EP;
CAS:149-87-1;
EINECS:205-748-3;
Product Property:White crystal or crystal powder;
Main Use:Used as pharmaceutical intermediates, biochemical reagents and raw materials for cosmetics.
|
Property |
Standard |
|
Appearance |
White crystal |
|
Rotary rate [α]D20 |
-0.3º to 0.3º |
|
Light penetrating rate |
No less than 98.0% |
|
Melting Point (ºC) |
160.0 ~ 162.0 ºC |
|
Chlorids (C1) |
No more than 0.02% |
|
Amonnium salt (NH4) |
No more than 0.02% |
|
Sulphur salts (SO4) |
No more than 0.02% |
|
Heavy Metal (Pb) |
No more than 10ppm |
|
Iron (Fe) |
No more than 10ppm |
|
Arsenic salt (As2O3) |
No more than 1 PPm |
|
Drying Loss |
No more than 0.50% |
|
Burning residues |
No more than 0.2% |
|
Purity |
99.0-101.0% |
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