L-Pyroglutamic acid 98-79-3
Model No.︰98-79-3
Brand Name︰tongsheng
Country of Origin︰China
Unit Price︰-
Minimum Order︰1 pc
Product Description
|
Appearance |
White crystalline powder |
|
Specific rotation(a)D20 (C=5 H2O) |
-11.0 to -12.0º |
|
Chloride(C1) |
Not more than 0.02% |
|
Ammonium(NH4) |
Not more than 0.02% |
|
Sulfate(SO4) |
Not more than 0.02% |
|
Heavy metals(Pb) |
Not more than 10ppm |
|
Iron(Fe) |
Not more than 10ppm |
|
Arsenic(As2O3) |
Not more than 1 PPM |
|
Loss on drying |
Not more than 0.5% |
|
Residue on ignition |
Not more than 0.1% |
|
Assay |
99.0-101.0% |