N-Acetyl-L-Cysteine Powder High Quality New Arrival

We are offering n-acetyl-l-cysteine
white crystals or crystalline powder; strongly acid taste.
Cas no.616-91-1
assay 98.5-101.0%
n-acetyl-l-cysteine(nac)
cas no.616-91-1
molecule formulac5h9no3s
molecule weight163.20
description:white crystals or crystalline powder; strongly acid taste. Freely soluble in water.soluble in ethanol, practically insoluble in ether.solubility(h2o, g100g):17(20°),80(40°),260(60°)
manufacture standards: aji92,usp26,ep5
assay 98.5-101.0%
main uses: cure bronchitis.used in the cure of liver disease, antioxidant and antidote.
Packing:25kgs fiber drum
characters
a white crystalline powder or colourless clystals,freely soluble in water and in alcohol,practically insoluble in methylene chloride
infrared spectrum
compares to standard
specific rotation[α]d20
+21.0 ° to+27.0 °
identification reaction
a dark violet colour develops
melting range
104°c to 110°c
appearance of solution
clear and colourless
ph
2.0 to 2.8
zinc
not more than 10ppm
heavy metals(pb)
not mote than 10ppm