D-histidine CAS:351-50-8-custom synthesis contract manufacturing
D-histidine CAS:351-50-8
Structural Formula D-histidine CAS:351-50-8
Product Name D-Histidine
Synonym (2R)-2-amino-3-(1H-imidazol-5-yl)propanoic acid;(R)-2-Amino-3-(1H-imidazol-4-yl)propanoic acid;(R)-2-Amino-3-(1H-imidazol-4-yl)propanoic acid;(2R)-2-amino-3-(1H-imidazol-5-yl)propanoic acid
CAS No. 351-50-8
Molecular Weight See details
Specifications Upon request
Packing Sea or Airworthy packing
Material Safety Data Sheet Upon request
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Solubility in water Colorless & clear (c=3)
Specific rotation [α]D20 -11.8°~-12.8°(c= 11, 6M-HCl)
Loss on drying Not more than 0.3%
Residue on ignition (as sulfate) Not more than 0.1%
Chloride (Cl) Not more than 0.02%
Sulfate (SO4) Not more than 0.03%
Heavy metals (as Pb) Not more than 10ppm
Iron (Fe) Not more than 10ppm
Ammonium (NH4) Not more than 0.02%
Arsenic (As2O3) Not more than 1ppm
Other amino acids Not detected by T.L.C.(The spotted amount, 20μg)
Assay 98.5%~101.0%
L-Isomer Not more than 0.5%

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