USD $9.00-99.00 / Kilogram
USD $9.00-99.00 / Kilogram
USD $9.00-99.00 / Kilogram
USD $9.00-99.00 / Kilogram
USD $9.00-99.00 / Kilogram
USD $9.00-99.00 / Kilogram
USD $9.00-99.00 / Kilogram
USD $9.00-99.00 / Kilogram
amino acid d-tryptophan
for more details ,pls contact us for coa and msds.
lot no. |
mfg. date |
exp. date |
molecular structure |
20151020 |
2015.10.20 |
2017.10.19 |
|
molecular weight |
molecular formula |
||
204.23 |
c11h12n2o2 |
||
quantity |
packing |
||
20g |
20g/ plastic bag |
||
storage |
keep in a cool & dry place |
||
application |
important nutrients, on medicine for the prevention and treatment of niacin agent |
items |
specification |
results |
test method |
|
description |
white to slightly yellowish-white crystals or crystalline powder |
white crystalline powder |
aji |
|
specific rotation [a]20d |
+30.5°~+32.5° |
+31.4° |
aji |
|
transmittance |
≥95.0% |
95.5% |
aji |
|
chloride |
≤0.020% |
<0.020% |
aji |
|
ammonium |
≤0.02% |
<0.020% |
aji |
|
iron |
≤20ppm |
<20ppm |
aji |
|
sulfate |
≤0.020% |
<0.020% |
aji |
|
heavy metals |
≤10ppm |
<10ppm |
aji |
|
arsenic |
≤1ppm |
<1ppm |
aji |
|
other amino acids |
conforms |
meet the requirements |
aji |
|
loss on drying |
≤0.20% |
0.12% |
aji |
|
residue on ignition |
≤0.10% |
0.06% |
aji |
|
assay |
99.0%-101.0% |
99.7% |
aji |
|
ph |
5.5-6.4 |
6.0 |
aji |
|
conclusion: |
meet the requirement of aji92 standard. |
company profile
changzhou sunsanta trading co.,ltd is located in changzhou,jiangsu,china, it is dedicated to developing, manufacturing and marketing of pharmaceutical intermediates, apis and fine & speciality chemicals. our main products are amino acid and their derivatives, anti-virus, anti-depresant, pril products, and other intermediates.
we own in indepedent r&d center in jiangsu provice and plants in shanghai and zhejiang provice. supported by our highly qualified team of professional and technicals, we have rich experience in a wide range of chemical reactions. besides, we have professional abilities to fully support clients with all technical certifications and efficient regulatory documents. we have successfully established a sales network worldwide, esp europe, southeast asia and africa market. quality, creativeness and services is our motto. we value more special service accordingto client's requirements.
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