D-缬氨酸640-68-6
Item
Standard
Analysis data
Appearance
White
or off-white crystalline powder
White
or off-white crystalline powder
Specific
Rotation
(C=8，6N HCl)
-25.0
to -29.0°
-26.3°
Chloride
(Cl)
not
more than 0.02%
accordance
Loss
on drying
≤0.2%
0.09%
Residue
on Ignition
not more than 0.1%
0.052%
Heavy
Metals(Pb)
not
more than 10ppm
accordance
Assay
98.5
to 100.5%
99.0%
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