L-Cystine, FCC

Applications

L-Cystine FCC is a non-essential amino acid vital for human development formed by the dimerization of two cysteines. L-Cystine is used as an antioxidant, protecting tissues against radiation and pollution. It finds application in protein synthesis. It is required for utilization of vitamin B6 and is useful in healing burns and wounds. L-Cystine FCC is found in various nutritional products, acne treatments, and creams to treat cervical injury or inflammation. Its derivatives act as ligands for neuronal nicotine receptors and have various pharmacological activities. It serves as a building block for proteins and is crucial for maintaining a healthy immune system.

FCC Grade: Chemicals that are FCC grade meet standards outlined in the Food Chemicals Codex. The FCC was acquired by the USP, but still uses the Codex for food chemical standards. This applies specifically for food ingredients and includes special tests for toxicity and ensure suitability for human consumption.

Sales Specification

Appearance: White Crystals or Crystalline Powder
Specific Rotation [α]D20: -215º ~ -225º
Chloride (Cl): ≤ 0.10 %
Sulfate (SO4): ≤ 0.040 %
Iron (Fe): ≤ 0.003 %
Heavy Metals (Pb): ≤ 0.0015 %
Arsenic (As2O3): ≤ 1.5 ppm
Loss on Drying: ≤ 0.20 %
Residue on Ignition: ≤ 0.10 %
Organic Volatile Impurities: Meets Requirements
Assay: 98.5 ~ 101.0 %
FCC Standard: Conforms