D-苏氨酸?632-20-2
Items
Standard
Analysis data
Appearance
White
to off-white crystalline powder
conforms
Specific Rotation [а]D20
（C=6 in H2O）
+27.6 to +29.0 Degree
+28.0o
Transmittance
Not less than 95%
98.0%
Heavy Metals (Pb)
Not more than 10PPM
conforms
Arsenic(As2O3)
Not more than 2PPM
conforms
Loss on Drying
Not more than 0.30%
0.19%
Residue on Ignition (Sulfated)
Not more than 0.20%
0.10%
Assay
Not less than 98.0%
98.5%
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