USD $100.00-150.00 / Kilogram
USD $3.00-10.00 / Kilogram
1) we are the sales represntative of the factory who produce this products . .
2) we are dealing in this field for more than ten years . we have experience to handle this
3) we have a laboratory which is fda approved can test the materials before export ,so we can gurantee you the quality
4) payment terms : we can accept t.t ,dp ,lc 60 days . more flexible .
5)we enjoy a good reputation in china and international market ,so you can trust us
packaging detail: | 25kgs/drum |
delivery detail: | ppt |
good quality l-serine
1.assay:98.5%
2.quality standards: cp2010,usp32,aji97
3.raw material for amino acid in injection
good quality l-serine
1.assay:98.5%
2.quality standards: cp2010,usp32,aji97
3.raw material for amino acid in injection
test item |
specification |
assay |
≥98.5% |
characteristic |
white crystals or crystalline powder, odorless, slightly sweet taste |
specific rotation[a]d20° |
+14.0°~ +15.6° |
identification |
as per cp2010 |
ph |
5.5~6.5 |
transmittance |
≥98.0% |
chloride |
≤0.02% |
sulfate |
≤0.02% |
ammonium |
≤0.02% |
other amino acids |
≤0.5% |
loss on drying |
≤0.2% |
residue on ignition |
≤0.1% |
iron |
≤0.001% |
heavy metals(as pb) |
≤10ppm |
arsenic |
≤0.0001% |
bacterial endotoxins |
≤12 eu/g |