Sinoway International (Jiangsu) Co., Ltd. >> L-Cystine

L-Cystine

Name: L-Cystine
Brand: China-Manufacturer-Directory.com
SKU: 619332732
Availability: InStock
Rating: 4.6 (38 reviews)

Supplier:	Sinoway International (Jiangsu) Co., Ltd.
Price:	Negotiable
Min Order:	1
Quantity::

Product Specifications

Product Description

Chemical Name: L(-)-3, 3'-Dithiobis(2-aminopropanoic acid)
Molecular Formula: C6H12N2O4S2
Molecular Weight: 240.29
CAS No: [56-89-3]
Characteristics: White crystals or crystalline powder; Tasteless. Practically insoluble in water, in ethanol and in ether. Dissolves in dilute HCl.
Quality Standards: AJI92, FCCIV, In-house (ref USP24)
Packaging and Storage: In 25kgs f iber drum double polyethylene bags inside; Preserve in well-closed containers, at controlled room temperature.
R ecommended limit: 1 year.

Item	Specifications (AJI92 )	USP 24	FCC IV
Appearance	White crystal or crystalline powder; tasteless
Description	White crystals or crystalline powder
Identification	Infrared absorption spectrum
Specific rotation [a]_D 20°	-215 ° - -225 °	-215 ° - -225 °	-215 ° - -225 °
State of solution (Transmittance)	≥ 98.0%	---	---
Chloride(CL)	≤ 0.020%	≤ 0.020%	---
Ammonium(NH₄)	≤ 0.02%	---	---
Sulfate(SO₄)	≤ 0.020%	≤ 0.020%	---
Iron(Fe)	≤ 20PPm	≤ 20PPm	---
Heavy metals(Pb)	≤ 10PPm	≤ 10PPm	20ppm
Arsenic(As₂O₃)	≤ 1PPm	---	---
Other amino acids	Conforms	---	---
Loss on drying	≤ 0.20%	≤ 0.20%	≤ 0.20%
Residue on ignition (Sulfated)	≤ 0.10%	≤ 0.10%	≤ 0.10%
Assay	98.5-101.0%	98.5-101.0%	98.5-101.0%
PH	5.0-6.5	5.0-6.5	---
Organic Volatile impurities	---	Meets the requirements	---

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