N-Acetyl-L-Cysteine

Item	Specifications
Item	USP	AJI
Appearance	White crystals or crystalline powder; strongly acid taste.
Identification	Infrared Absorption	---
Specific optical rotation	+5.6 °- +8.9 °	+5.5 °- +7.0 °
State of solution (Transmittance)	---	>= 98.0% clear and colorless
Chloride (Cl)	---	19.89-20.29%
Ammonium(NH4)	---	=< 0. 002%
Sulfate	=< 0. 03 %	=< 0. 020%
Iron	=< 0. 003 %	10ppm
Heavy Metals (as Pb),	=< 0.00 15%	=< 10ppm
Arsenic (as As),	---	=< 1ppm
Other amino acids	---	Not detected
Organic volatile impurities	Meets the requirement	---
Loss on drying,	8-12 %	8.5-12 %
Residue on ignition,	c	=< 0.1 0 %
Assay	98.5-101.5 %	9 9.0-10 0.5 %
pH value	---	1.5-2.0
Organic volatile impurities	Meets the requirement	---
Chromatographic purity	0.5% max Individual impurity, 2% max total	---

N-Acetyl-L-Cysteine

1. N-acetyl-cysteine is the acetylated form of L-cysteine which is more efficiently absorbed and used. It is also an antioxidant that is helpful against viruses.

2. N-acetyl-cysteine has been used as a liver protectant and to break up pulmonary and bronchial mucus.

3. N-acetyl-cysteine can boost glutathione levels in cells.

4. N-Acetyl-L-Cysteine is a conditionally essential amino acid, one of only three sulfur-containing amino acids, the others being taurine (which can be produced from L-cysteine) and L-methionine from which L-cysteine can be produced in the body by a multi-step process.

4. N-Acetyl-L-Cysteine can act as an antioxidant, may prevent liver diseases, and can help to thicken the individual diameters of existing hair if taken regularly.

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1. What's your payment terms?
T/T or L/C.

2. What's your delivery time?
Usually we will arrange the shipment in 7 -15 days.

3. How about the packing?
Usually we provide the packing as 25 kg / bag or carton. Of course, if you have special requirements on them, we will according to you.

4. How about the validity of the products?
According to the products you ordered.

5. What documents you provide?
Usually, we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.

6. What is loading port?
Usually is Shanghai,Qingdao or Tianjin.