乙酰谷氨酸1188-37-0
Item
Standard
Analysis data
Appearance
White
crystals or crystalline powder
conforms
Specific
rotation[α]20/D
(C=2,H2O)
-14.0°to-17.0°
-15.0°
Transmittance
Not
less than 95.0%
98.8%
Heavy
metal(Pb)
Not
more than 20ppm
<10ppm
Iron (Fe)
Not
more than 10ppm
8ppm
Arsenic(As2O3)
Not
more than 2ppm
<2ppm
Chloride
(Cl)
Not
more than 0.020%
0.016%
Sulfate
(SO4)
Not
more than 0.10%
0.02%
Other amino acids
Chromatographically not
detectable
conforms
Loss
on drying
Not
more than 0.50%
0.11%
Residue on ignition
Not
more than 0.30%
conforms
Assay
98.0to102.0%
99.3%
pH
1.7to2.8
2.3
Conclusion
The
product is according with standard.
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