Product name: L-Pyroglutamic Acid
Cas#: 98-79-3 EINECS:202-700-3 MW.:129.11
Chemical formula: C5H7NO3
Molecular Structure: 
Synonyms:5-Oxoproline; 5-Oxopyrrolidine-2-carboxylic acid; L-5-Pyrrolidone-2-carboxylic acid; (S)-(-)-2-Pyrrolidone-5-carboxylic acid
Solution/odor: soluble in water,alcohol,acetone and odorless
Technical Data
|
No.
|
Test Items
|
Standard
|
|
1
|
Visual
|
White crystal powder
|
|
2
|
Assay
|
Min.99%
|
|
3
|
Specific Rotation [α]20/D
|
-11º- -12º
|
|
4
|
Loss on drying
|
Max.0.5%
|
|
5
|
Residual on ignition
|
Max.0.2%
|
|
6
|
PH
|
5.0-7.0
|
|
7
|
Melting point
|
159℃-162℃
|
|
8
|
Chloride
|
Max 0.02%
|
|
9
|
Heavy Metals(pb)
|
Max 10ppm
|
|
10
|
Total Plate Count
|
Max1,000cfu/g
|
|
11
|
Mold & Yeast
|
Max1,00 cfu/g
|
|
12
|
E.Coli., Salmonella
|
Absent
|
Application: widely used in cosmetics,pharmaceutics and food industry.
Packing & Storage: keep in cool and dry place ; packed in carton or drum after sealed by
plastic film bag(net weight:25kgs/carton or drum)
Shelf Life: Three years
