Shanxi Zorui Biotechnology Co., Ltd.
                                                                                                           
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L-Cysteine (CAS 52-90-4) - Antioxidant Amino Acid for Protein Synthesis and Detoxification

Price Negotiable
Price: Negotiable
MOQ: 500g, 1kg or 25kg for sample, 1000kg for commercial order
Delivery Time: In 3 working days
Brand: Zorui
Product Description
L-Cysteine CAS 52-90-4
L-Cysteine, with the molecular formula C₃H₇NO₂S, is a non-essential amino acid and isomer of cysteine that can be converted from methionine.
Key Benefits
  • Essential building block for protein synthesis
  • Precursor to glutathione, a powerful antioxidant
  • Supports immune function and detoxification processes
Target Industries & Applications
Pharmaceuticals, food additives, cosmetics, and research applications.
Technical Specifications
Alias Name Molecular Formula Molecular Weight
L-а-amino-b-mercaptopropionic acid L-Cysteine C₃H₇NO₂S 121.16
CAS No. EINECS No. Identification Specific Optical Rotation
52-90-4 200-158-2 Infrared spectroscopy +8.3°~+9.5°
Product Overview
L-Cysteine is a sulfur-containing amino acid that plays a crucial role in protein synthesis and is involved in various metabolic processes. It is known for its antioxidant properties and is commonly used in dietary supplements, pharmaceuticals, and food products.
Physical and Chemical Specifications
Property Specification
Common Name L-Cysteine
Chemical Formula C₃H₇NO₂S
CAS Number 52-90-4
Appearance White crystalline powder
Molecular Weight 121.16 g/mol
Solubility Soluble in water
Melting Point Approximately 240 °C
Product Functions
  • Antioxidant: Acts as a powerful antioxidant, protecting cells from oxidative stress and damage
  • Protein Synthesis: Plays a critical role in the synthesis of proteins and enzymes
  • Detoxification: Supports liver health and detoxification processes
  • Hair and Skin Health: Promotes health and vitality in cosmetic formulations
Application Areas
  • Nutritional Supplements: Immune support, detoxification, and overall health formulations
  • Pharmaceuticals: Respiratory health and antioxidant support medications
  • Food Industry: Flavor enhancer and antioxidant in bakery products
  • Cosmetics: Nourishing and protective effects in skincare and haircare products
Manufacturing Process
  • Synthesis: Produced through protein hydrolysis or synthetic processes involving cystine reduction
  • Purification: Undergoes purification to achieve desired purity and quality
  • Quality Control: Each batch rigorously tested for purity, identity, and safety compliance
Why Choose Our L-Cysteine?
  • High Quality: Sourced from reputable manufacturers with stringent quality control
  • Versatile Applications: Suitable for dietary supplements, pharmaceuticals, food, and cosmetics
  • Expert Support: Technical assistance and formulation guidance from our knowledgeable team
  • Sustainability Commitment: Environmentally responsible sourcing and manufacturing practices
Frequently Asked Questions
Q1: What is L-Cysteine?
A1: L-Cysteine is a sulfur-containing amino acid known for its antioxidant properties and role in protein synthesis.
Q2: What are the benefits of using L-Cysteine?
A2: It supports detoxification, provides antioxidant effects, and plays a crucial role in protein synthesis and overall health.
Q3: Where is L-Cysteine commonly used?
A3: Common applications include nutritional supplements, pharmaceuticals, food products, and cosmetics.
Q4: Is L-Cysteine safe for consumption?
A4: Generally considered safe when used according to recommended guidelines; consulting healthcare professionals is advisable.
Q5: What are the recommended storage conditions for L-Cysteine?
A5: Store in a cool, dry place, away from moisture and direct sunlight to maintain product quality.
Product Documentation
L-Cysteine product sample showing white crystalline powder
Product Sample
L-Cysteine industrial packaging and storage
Industrial Packaging
L-Cysteine chemical structure diagram
Chemical Structure
L-Cysteine quality control testing in laboratory
Quality Control Testing
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Company Shanxi Zorui Biotechnology Co., Ltd.
Location Huiquan Square F14, No.1450 SH Caohejing Hi-Tech Park, Datong, Shanxi, China
Contact Person Julie

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