Sinoway International (Jiangsu) Co., Ltd. >> L-Cysteine Free Base

L-Cysteine Free Base

L-Cysteine Free Base
Supplier: Sinoway International (Jiangsu) Co., Ltd.
Price: Negotiable
Min Order: 1
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Product Specifications

Product Description

Chemical Name: (+)-2-Amino-3-mercaptopropionic acid
Molecular Formula: C3H7NO2S
Molecular Weight: 121.15
CAS No: [52-90-4]
Characteristics: White crystalline powder; Tasteless, easily soluble in water but insoluble in alcohol and ether
Quality Standards: AJI92
Packaging and Storage: In 25kgs fiber drum double polyethylene bags inside; Preserve in well-closed containers, at controlled room temperature.
Recommended limit: 1 year.
Item
 
Specifications (AJI92)
 
Description
 
White crystals or crystalline powder
 
Identification
 
Meets the requirements
 
Specific rotation [a]D 20°
 
+8.3 ° - +9.5°
 
State of solution
 
≥ 95.0%
 
Chloride (Cl)
 
≤ 0.04%
 
Ammonium (NH4)
 
≤ 0.02%
 
Sulfate (SO4)
 
≤ 0.030%
 
Iron (Fe)
 
≤ 10PPm
 
Heavy metals (Pb)
 
≤ 10PPm
 
Arsenic (As2O3)
 
≤ 1PPm
 
Other amino acids
 
conforms
 
Loss on drying
 
≤ 0.5%
 
Residue on ignition (sulfated)
 
≤ 0.1%
 
Assay
 
98.0-101.0%
 
PH
 
4.5-5.5
 
Sinoway International (Jiangsu) Co., Ltd., (formerly named China National Chemical Construction Jiangsu Company), was listed 500 import and export enterprises classified by the State in 1998. Total export and import in 2007 is 250 million US Dollars. The main transaction includes import and export of ships/vessels, chemicals, pesticides and pharmaceuticals and relative technologies.

The organization of the company consists of General Manager's office, Vice General Managers' office, Import and Export Divisions, Accounting Division and Administration Division. And there is a well trained and efficient staff team with strong business advantages.

Our mission is to provide our customers with quality service. We follow the steady development guideline of safety and benefits first. And we promote business style of practicality, modesty and progressiveness.

All staffs from Sinoway International (Jiangsu) Co., Ltd are willing to serve friend from all works of life with sincerity.

Corporate officers:
President: Mr. Tao Jinzhao
General Manager: Mr. Chen Zhongyu
Vice General Manager: Mr Lu Shenxing

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