Product Name: H-D-Pyr-OH
CAS#: 4042-36-8
Synonyms: D-Pyroglutamic acid
Molecular Formula: C5H7NO3
Molecular Weight: 129
Specification:
|
Item |
Standard |
|
Appearance |
White crystals with lumps |
|
Specific rotation[α]D/20 (C=2 in H2O) |
+10.8°to +12.3° |
|
Melting Point (ºC) |
160 to 163 ºC |
|
Chloride(C1) |
Not more than 0.02% |
|
Iron(Fe) |
Not more than 10ppm |
|
Heavy metals(Pb) |
Not more than 10ppm |
|
Arsenic(As2O3) |
Not more than 1ppm |
|
Loss on drying |
Not more than 0.20% |
|
Residue on ignition |
Not more than 0.10% |
|
Assay |
98.0%¡«101.0% |
