amino acids
Product Name: H-DL-Pyr-OH CAS#: 149-87-1
Synonyms: DL-Pyroglutamic acid Molecular Formula: C5H7NO3
Molecular Weight: 129
Specification: (Reference Standard: AJI92)
Items
Standard
Analysis data
Appearance
White crystalline powder
Conforms
Melting Point(oC)
160.0 to 162.0oC
160.5oC
Chloride(C1)
Not more than0.02%
0.01%
Ammonium(NH4)
Not more than0.02%
Conforms
Sulfate(SO4)
Not more than 0.02%
0.005%
Heavy metals(Pb)
Not more than 10ppm
Conforms
Iron(Fe)
Not more than 10ppm
6ppm
Arsenic(As2O3)
Not more than 1ppm
Conforms
Loss on drying
Not more than 0.50%
0.36%
Residue on ignition
Not more than0.1%
Conforms
Assay
98.0-101.0%
99.1%