analytical certification of product
Product Name: L-Pyroglutamic Acid
CAS#: 98-79-3
Molecular Formula: C5H7NO3
Molecular Weight:129.11
Batch No: TR20210410
Manufacturing date: Apr. 10,2021
Expiring date: Apr. 09,2023
| Item |
Standard |
Results |
| Appearance |
White crystalline powder |
White crystalline powder |
| Assay |
98.5% to 100.5% |
99.02% |
| Specific rotation(a)D20(C=2, H2O ) |
-10.5°to -12.3° |
-11.03° |
| Chloride(C1) |
NMT 0.02% |
0.01% |
| Ammonium (NH4) |
NMT 0.02% |
< 0.02% |
| Sulfate (SO4) |
NMT 0.02% |
0.01% |
| Heavy metals (as Pb) |
NMT 10 ppm |
<10 ppm |
| Iron (Fe) |
NMT 10 ppm |
8 ppm |
| Arsenic (As2O3) |
NMT 1 ppm |
<1 ppm |
| Loss on drying |
NMT 1.0% |
0.35% |
| Residue on ignition |
NMT 0.1% |
0.08% |
| Remarks |
Store in well closed container and in dry and cool place |
Audited Supplier 
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