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Nonessential Amino Acid L-Cystine

Chemical Formula: C₆H₁₂N₂O₄S₂

Molecular Weight:204.3

Cas No.:56-89-3

HS Code:293090

MOQ:500kg

Model:
SY-901004-1
Brand:
SYBT
Code:
293090

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Quantity:



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Product Description

Product Description
L-cystine is a covalently linked dimeric nonessential amino acid formed through the oxidation of cysteine.

Specification
Test Item	Specification	Test Method
Appearance	White crystals or crystalline powder	Visual
Identification	infrared absorption spectrum	AJI92
Assay	98.5%~101.0%	AJI92
pH	5.0~6.5	AJI92
Loss on drying	Maximum 0.2%	AJI92
Residue on ignition	Maximum 0.1%	AJI92
Specific rotation[a]D20	-215°~-225°	AJI92
State of solution	Clear and colorless,Min 98.0%	AJI92
Iron	Maximum 10ppm	AJI92
Chloride	Maximum 0.02%	AJI92
Ammonium	Maximum 0.02%	AJI92
Heavy Metals	Maximum 10ppm	AJI92
Sulfate	Maximum 0.02%	AJI92
Arsenic	Maximum 1ppm	AJI92
Total Plate count (cfu/g)	Maximum 1000 cfu/g	AJI92
Moulds and yeast	Maximum 100 cfu/g	AJI92
Escherichia coli	Negative	AJI92
Salmonella	Negative	AJI92

Application

L-Cystine is used as pharmaceutical raw material or for food supplement.

Cystine is used as a component for parenteral and enteral nutrition. It is used as the main active ingredient for medications used to treat dermatitis. Cystine is also used in drugs that protect liver function.

Packing
25kg/Drum; or according to customers' requirements.

Storage
Storage conditions: store in a well-closed container away from moisture and direct sunlight.

Shelf Life
2 years if sealed and stored properly.

FAQ

Q:What's the Minimum Order Quantity?

A:500kg

Q: How to Get Sample?
A: Sample within 20g could be sent for free once buyer's DHL/FEDEX account is advised for freight collect or courier cost is paid. The courier cost could be deducted when bulk order is placed.

Q: What is Lead Time?
A: Generally, cargo could be loaded on ship in about two weeks after the date of receiving prepayment or L/C. Sometimes one week earlier or later.

Cas No.:56-89-3 L-Cystine Nonessential Amino Acid food supplement

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