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1 Kilogram |
Negotiable |
Acetylcysteine/NAC High Purity 99% Acetylcysteine CAS NO.616-91-1 N-Acetyl-L-Cysteine
product name |
nac |
brand name |
chenming |
country of origin |
china |
manufacturer |
luojiang chenming biological co.,ltd |
appearance |
white crystals or crystalline powder |
cas no. |
616-91-1 |
purity |
98% |
grade standard |
feed grade,food grade,medicine |
type |
vitamins, amino acids and coenzymes |
usage |
pharmaceutical intermediates/ingredient/raw material |
mf |
c5h9no3s |
certificate |
aji;usp;ep;coa; iso |
shelf life |
24 months |
n-acetyl-l-cysteine
certificate of analysis |
||
test items: |
specification: |
results: |
identification: |
infrared absorption |
conforms |
specific rotation[a]d20° : |
+21°~+27° |
+23° |
iron(fe): |
≤15ppm |
6ppm |
heavy metals(pb) : |
≤10ppm |
3ppm |
loss on drying: |
≤1.0% |
0.50% |
organic volatile impurities: |
meets the requirements |
conforms |
residue on ignition : |
≤0.50% |
0.30% |
residual solvents: |
meets the requirements |
conforms |
assay: |
98.0~102.0% |
99.3% |
ph : |
2.0~2.8 |
2.50 |
particle size: |
≥95%pass 20 mesh |
conforms |
characteristics: |
white crystalline powder or colorless crystalls,freely soluble in water and in alcohol,practically insoluble in methylene chloride |
|
storage: |
preserve in well-closed containers, at controlled room temperature |
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