L-Cysteine

Non Essential amino acid, CAS No.52-90-4, HS code:293090

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Product Description

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L-Cysteine, E920, CAS No.52-90-4, a non-essential amino acid manufactured through fermentation. Cysteine is extracted from raw materials of animal and human origins. It is mainly obtained from human hair, or from feathers, pigs bristles and hooves. L-cysteine is also manufactured by the electrolytic reduction method using l-cystine as the starting materials. available as white crystalline powder used as safe nutrition supplements. As a professional supplier of L-Cysteine powder, we supply L-Cysteine feed/food grade/pharma grade. The primary role of L-cysteine is in the production of important antioxidants such as glutathione. L-cysteine serves as precursors for synthesis of proteins, glutathione, taurine and coenzyme A. Pharmaceutical uses include improvement of hepatic function and pigmentation. The acetyl, ethyl ester and carboxymethyl derivatives are used in agents for dissolving air passage mucosa (expectorant).

CAS No. : 52-90-4
Chemical Formula : C3H7NO2S
H.S.code : 293090
E No. : E920

L-Cysteine Specification

Item Specifications (AJI97 )
Appearance White crystal or crystalline powder; tasteless
Assay, % 98.5~101.0
Specific rotation -218°~ -224°
Loss on drying, % ≤0.2
Transmittance, % ≥98.0
Chloride (as Cl), % ≤0.02
Sulfate (as SO4), % ≤0.02
Ammonium as (as NH4), % ≤0.02
Iron (as Fe), %  ≤0.001
Heavy Metals (as Pb), %  ≤0.001
Arsenic (as As), %   ≤0.0001
pH Value    5.0~6.5
Residue on ignition, % ≤0.1
Other amino acid   Conforms

As a professional supplier of L-Cysteine powder, we supply L-Cysteine feed/food grade/pharma grade. Cysteine used widely in food production, beverage, pharmaceutical, cosmetics, agriculture/animal feed. can provide HAPPC, KOSHER, HALAL Certificates for this product.

Price trend of L-Cysteine

Upstream: Prices of upstream animal hair are stable and supply is stable. Production capacity of the L-Cysteine manufacturers didn’t change much.
Downstream: Downstream demand is pretty stable.
Forecast: Considering the current market trend, price of L-Cysteine will be stable in the coming months.

  • Food Grade: As a professional supplier of L-Cysteine powder, we supply L-Cysteine feed/food grade/pharma grade. 

L-Cysteine gluten free

Yes. L-Cystine is gluten free and widely used in gluten free food to provide a great dietary supplement that are essential for human health to processed food.

Halal Certified L-Cysteine

L-Cystine is an amino acid manufactured through fermentation. As a synthesized chemical, L-Cystine is general recognized as halal. We will still audit another 2 key points to make sure that our L-Cystine is 100% halal: Are there any pig products used in manufacturing process of this ingredient? Does the ingredient contain Alcohol (impure) or other haraam ingredients?

Kosher Certified L-Cysetine

L-Cystine is an amino acid manufactured through fermentation. As a synthesized chemical, L-Cystine is general recognized as Kosher classified as Parve. However, L-Cystine Pareve non-Passover KLBD.

L-Cysteine MSDS

  • 5.1. Storage: stored in tight containers at controlled room temperature.
  • 5.2. Handling precaution: Keep away from heat. Keep away from sources of ignition. Empty containers pose a fire risk, evaporate the residue under a fume hood. Ground all equipment containing material. Do not ingest. Do not breathe dust.

Side Effect of L-Cysteine

L-Cysteine is perfectly safe for using as food additives.

No significant side effects reported. L-Cysteine can cause nausea, vomiting, and diarrhea or constipation in specific groups of individuals.

Application and Uses of L-Cysteine

The primary role of L-cysteine is in the production of important antioxidants such as glutathione. L-cysteine serves as precursors for synthesis of proteins, glutathione, taurine and coenzyme A. Pharmaceutical uses include improvement of hepatic function and pigmentation. The acetyl, ethyl ester and carboxymethyl derivatives are used in agents for dissolving air passage mucosa (expectorant).

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