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Item |
Standard |
Analysis data |
Appearance |
White crystals |
Conforms |
Specific rotation[α]D/20 (C=2 in H2O) |
+10.8°to +12.3° |
+11.65° |
Melting Point (ºC) |
159 to 161 ºC |
160ºC |
Chloride(C1) |
Not more than 0.02% |
0.005% |
Sulfate(SO4) |
Not more than 0.02% |
0.005% |
Iron(Fe) |
Not more than 10ppm |
8ppm |
Heavy metals(Pb) |
Not more than 10ppm |
<10ppm |
Arsenic(As2O3) |
Not more than 1ppm |
<1ppm |
Loss on drying |
Not more than 0.50% |
0.25% |
Residue on ignition |
Not more than 0.10% |
0.08% |
Assay |
98.0%~101.0% |
99% |
Conclusion |
The product conforms to the standard, the method of test consult AJI92 |
D-焦谷氨酸4042-36-8CAS号:4042-36-8
D-焦谷氨酸4042-36-8分子式: C5H7NO3
D-焦谷氨酸4042-36-8英文名称: 5-Oxo-D-proline
D-焦谷氨酸4042-36-8英文同义词: D-5-Pyrrolidone-2-carboxylic acid; D-Pyroglutamic acid; (R)-(+)-2-Pyrrolidinone-5-carboxylic acid; H-D-Pyr-OH; ; 2-oxopyrrolidine-1-carboxylic acid
D-焦谷氨酸4042-36-8EINECS号: 223-735-0
D-焦谷氨酸4042-36-8分子量: 129.114
D-焦谷氨酸4042-36-8熔点: 155-162℃
D-焦谷氨酸4042-36-8沸点: 270.098°C at 760 mmHg
D-焦谷氨酸4042-36-8密度: 0.002mmHg at 25°C
D-焦谷氨酸4042-36-8闪点: 117.151°C