L-Cystine

Name: L-Cystine
Availability: l-cystine-256610.html

Category:Intermediates > Pharmaceutical Intermediates
Product Name:L-Cystine
CAS No.:56-89-3
Standard:USP, BP, EP
Company:Changzhou Comwin Fine Chemicals Co., Ltd.

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Basic Info

Grade: Pharmaceutical Grade

Factory Location: Jiangsu

Main Sales Markets: North America,Central/South America,Western Europe,Eastern Europe,Asia
Monthly Production Capacity: 20000kgs

Packaging Information: 25kg/drum
Delivery Lead Time: 2weeks after order

Sample Provided: yes

Payment Terms: T/T

L-Cystine

Chemical Name	L-Cystine
CAS No.	56-89-3
Molecular Formula	C6H12N2O4S2
Molecular Weight	240.3
Molecular Structure
Storage	Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from metals. Keep refrigerated. Store protected from moisture. Store protected from light and air.

SPECIFICATION

ITEMS	SPECIFICATION
Appearance	White crystals or crystalline powder
Identification	Conforms with the reference spectrum
Specific rotation	-215~-225°
Chloride	≤ 0.02%
Sulfate	≤ 0.02%
Iron	≤ 10ppm
Heavy metals	≤ 10ppm
Organic Impurities	individual impurity ＜0.2% total impurities ＜ 2.0%
Loss on drying	≤ 0.20%
Residue on ignition	≤ 0.10%
Assay	98.5~101.5%

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