appearance white crystals powder
melting point 142~148°c
specific rotation -126°±5°
iron(fe) not more than 10ppm
loss on drying not more than 0.50%
ammonium (nh4) not more than 0.02%
sulfate (so4) not more than 0.030%
heavy metal(pb) not more than 10ppm
arsenic(as2o3) not more than 1ppm
assay not less than 98.5%
ph 1.50-2.50
相关产品:54323-50-1 , 5025-82-1 , 乙酰-硫代脯氨酸 , 半叶素
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