• Air ProL-Cystine


L-cystine is a nutritional supplement, can be used in medicine, cosmetics, food additives and so on.Used for breast-feeding milk powder.Non - essential amino acids.It is essential to the formation of skin and hair and can facilitate surgery and trauma treatment.Stimulates the hematopoietic function, promotes the white blood cell generation.It can promote the oxidation and reduction of cells in the body. It can also be used as an additive in cosmetics to promote wound healing, prevent skin allergies and treat eczema.

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Product Description

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China L-Cystine Factory

L-Cysteine CAS: 56-89-3

L-Cysteine Introduction

Formula: C6H12N2O4S2

Molecular Weight: 240.30

EINECS: 200-296-3

Assay: 98.5%-101.0%

Appearance: White crystalline powder

Package: 25kg/drum

Density: 1.571 g/cm3

Melting Point: >240°C (DEC. )(lit. )

Boiling Point: 468.2°C at 760 mmHg

Flash Point: 237°C

Solubility: 0.112 g/L (25°C) in water

Usage: L-Cystine is used as cystine along with the amino acid methionine are the amino-acids necessary for wound healing.

Storage: L-Cystine should be storaged in sealed containers under room temperature  

L-Cysteine CAS: 56-89-3 Specification:




White crystal or crystal powder

Specific Rotation [a]D20o

-215¡ã to -225¡ã

State of Solution

98.0% Min

Chloride (Cl)

0.02% Max

Ammonium (NH4)

0.02% Max

Sulfate (SO4)

0.02% Max

Iron (Fe)

10ppm Max

Heavy Metals (Pb)

10ppm Max

Arsenic (As2O3)

1ppm Max

Loss on Drying

0.2% Max

Residue in Ignition

0.1% Max


5.0 to 6.5


98.5% to 101.0%


Infrared absorption spectrum

Other Amino Acids



L-Cysteine CAS: 56-89-3 Function

1.L-Cysteine is an effective detoxification.

2.L-Cysteine can effectively prevent and treat radiation injury.

3.L-Cysteine can remove the skin melanin itself, change the nature of the skin itself, the skin becomes natural whitening. It is a kind of ideal natural whitening cosmetics.

4.L-Cysteine can improve the symptoms of inflammation and skin allergies.

5.L-Cysteine on horny skin disease is also effective hypertrophy.

6.L-Cysteine is a function to prevent biological aging.

L-Cysteine CAS: 56-89-3 Application

1.Food field

It is a nutritional supplement and flavoring agents.Used for milk powder. Dough thews strengthening agent, used in baked goods (yeast leavening agent), and ferment powder

2.Medicine field

Medicine to promote wound healing. Treat skin allergy, antidote, hematopoietic agent, etc

3.Feed field

As a Feed nutrition enhancer. Conducive to the upgrowth of animal, increase weight and kidney function, improve the quality of fur.

4.cosmetic field.

It is a natural skin whitening Product. It is a kind of ideal natural whitening cosmetics.

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