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]_d^20° ：

+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