USD $5.00-10.00 / Gram
USD $10.00-100.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $10.00-100.00 / Kilogram
our factory covers an area of 37,000 square meters
we have passed: iso9001:2000; qs, kosher; halal and haccp, iso22000 quality system
our product quality has reached the us fcciv and usp, european pharmacopoeia and japanes ajinomoto standards
shijiazhuang haitian amino acid co., ltd.
year establishment: 2003
location: xing'an industrial zone in gaocheng district of hebei province, china
main products: l-hydroxyproline, l-methionine, dl-methionine, meropenem side chain, l-lysine hcl, glycine, l-arginine
specification:
items |
specifications (aji) |
specifications (usp) |
description |
white crystals or crystalline powder |
|
identification |
infrared absorption spectrum |
|
specific rotation[a]d20 ° |
+22.1 °- +22.9° |
+21.4 °- +23.6° |
state of solution |
≥ 98.0% |
--- |
chloride (cl) |
16.58-17.00% |
16.5-17.1% |
ammonium (nh4) |
≤ 0.02% |
--- |
sulfate (so4) |
≤ 0.020% |
≤ 0.03% |
iron (fe) |
≤ 10ppm |
--- |
heavy metals (pb) |
≤ 10ppm |
≤ 0.002% |
arsenic (as2o3) |
≤ 1ppm |
--- |
other amino acids |
conforms |
--- |
loss on drying |
≤ 0.20% |
≤ 0.20% |
residue on ignition (sulfated) |
≤ 0.10% |
≤ 0.10% |
assay |
99.0-101.0% |
98.5-101.5% |
ph |
4.7-6.2 |
--- |
organic volatile impurities |
--- |
meets the requirement |