L-Threonine factory price L-Threonine real supplier 72-19-5
Product | |
Product name | L-Threonine |
Synonyms | L-2-Amino-3-hydroxybutyric acid |
CAS No. | 72-19-5 |
Molecular formula | C4H9NO3 |
Molecular weight | 119.12 |
Specifications | |
Appearance | white powder |
Water solubility | 90 g/L (20 ºC) |
Melting point | 255 ºC |
Assay | 97%+ |
Others | |
Packing | As requested |
Application | Phamaceutical Intermediates,Biochemical reagents |
Item |
Standard |
Item |
Standard |
Specific rotation |
-27.6°~ -29.0° |
Transmittance |
≥98.0% |
Assay |
98.5%~100.5% |
Sulphate SO42- |
≤0.02% |
Ammonium NH4+ |
≤0.02% |
Iron(Fe) |
≤10ppm |
Heavy metal(Pb) |
≤10ppm |
Arsenic |
≤1ppm |
Residue on ignition |
≤0.1% |
Loss on drying |
≤0.2% |
p H |
Chloride(Cl) |
≤0.02% |
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