N-乙酰-L-缬氨酸96-81-1
Items
Standard
Analysis data
Appearance
White crystals or crystalline powder
conforms
Specific rotation[α]20/D
(C=1 Acetic acid)
+9.3°+ 2°
8.14°
Melting
point
159
to 168℃
160℃
Heavy
metal(Pb)
Not more than 20ppm
<20ppm
Arsenic
(As2O3)
Not more than 2ppm
<2ppm
Loss on Drying
Not more than 0.50%
0.18%
Residue on
ignition
Not more than 0.30%
0.1%
Assay
98.0% to 102%
98.6%
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