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L-Cysteine CAS NO. 52-90-4

1. Product Introduction L-Cysteine CAS NO. 52-90-4 Molecular Formula: C3H7NO2S L-Cysteine other names 2-Amino-3-sulfhydrylpropanoic acid, E920, is classified as a semi-essential amino acid. Although L-Cysteine is a minor scavenger of oxidative stress, its most important role is reviving......

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1. Product Introduction

L-Cysteine

CAS NO. 52-90-4

Molecular Formula: C3H7NO2S

L-Cysteine other names 2-Amino-3-sulfhydrylpropanoic acid, E920, is classified as a semi-essential amino acid. Although L-Cysteine is a minor scavenger of oxidative stress, its most important role is reviving glutathione, one of the most powerful antioxidants in the body. 


2. Specification or COA

Test Items

Specifications

Appearance

White crystals or crystalline powder

Identification

Infrared absorption spectrum

Specification rotation [α]D25

+8.3°~ +9.5°

PH

4.5 ~5.5

Heavy metals

≤10ppm

Lead(Pb)

≤3ppm

As2O3(As)

≤0.5ppm

Mercury(Hg)

≤0.1ppm

Cadmium(Cd)

≤1ppm

Sulfate(SO4)

≤0.03%

Chloride(Cl)

≤0.02%

Ammonium(NH4)

≤0.02%

Loss on drying

≤0.5%

Residue on ignition

≤0.1%

Organic volatile impurities

Meets the requirement

Assay

98.0%~101.0%


3. Product application

L-Cysteine supports the synthesis of the highly antioxidative Glutathione and can also be stored in this chemical form. It therefore plays an important part in detoxification and the resulting protection of several tissues and organs.

According to recent research studies this does not only slow down the natural process of ageing, but also helps in preventing dementia and multiple sclerosis. L-Cysteine has very high preventative potency in helping to prevent major degenerative illnesses.


4. Packing & Delivery

Standard export neutral packing in 25KG/DRUM, 20’ FCL=10MT. 25KG/BAG, 20’FCL=12MT.

Stored in well-closed container at room temperature.

Regular supply of L-Cysteine to meet requirements of global market

Suppliable for prompt delivery, no need for worry about suspension of supply


5. FAQ

Where did Meiyachem company come from?

Meiyachem was founded in Henan in 2005. Consistently with sister company KEMIACHEM CO., LIMITED, we are a global professional chemical solvents manufacturer and distributor through supplying solutions for a variety of chemicals with diverse applications and serve a wide range of industries.

Can I expect shorter lead times and simpler processes from Meiyachem?

Yes. Long experience and an unmatched portfolio of products and services enable Meiyachem to meet the customer's needs in terms of quality, scheduling and energy efficiency. Our intent is to simplify processes wherever it makes sense.

Will the products I use from Meiyachem continue to have the same quality, safety, and performance?

Yes. We will continue to manufacture and supply products at the same manufacturing locations, and every product will uphold the same standards of quality, safety, and performance.

How can I place a sample order? and is there a charge?

Samples may be ordered via Meiyachem website and there is no associated charge.


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