L-Pyroglutamic acid
CAS No: 98-79-3
White or off-white crystals or crystalline powder, dissolves in water, alcohol, acetone, glacial acetic acid, very slightly soluble in acetic ether, practically insoluble in ether.
|
Name of product |
L-Pyroglutamic acid |
Quality Specification |
Manufacturer’ s standard |
|
Item |
Standard |
Analysis result |
Item |
Standard |
Analysis result |
|
Specific rotation |
-10.5° — —
-11.9° |
-11.4° |
Transmittance |
|
|
|
Assay |
98.5 — — 100.5% |
99.2% |
Sulphate ( SO4 2- ) |
≤ 0.02% |
< 0.02% |
|
Ammonium ( NH4 + ) |
|
|
Iron(Fe) |
≤ 10ppm |
8ppm |
|
Heavy metal(Pb) |
≤ 10ppm |
8ppm |
Arsenic |
≤ 1ppm |
< 1ppm |
|
Residue on ignition |
≤ 0.1% |
< 0.02% |
Loss on drying |
≤ 1.0% |
0.6% |
|
Melting point |
+160 — — +162 º C |
162 º C |
Chloride(CL) |
≤ 0.10% |
< 0.05% |
|
Conclusion |
Eligible |
Remark |
|
|
|
Inspector |
Tangfengqiong |
Manager |
Wanggang |
|
Inspected company |
Chengdu Baishixing Science and Technology Industry Co., Ltd |
Established in 2003, Chengdu Baishixing Science and Technology Industry Co., Ltd a manufacturer and trader specialized in the research, development and production of amino acid. We are located in Chengdu, Sichuan, with convenient transportation access. All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.
If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.
