Food Additives, Food Ingredients Supplier - Foodchem

FOODCHEM is the L-Cystine supplier and manufacturer, engaged in the export and wholesale of L-Cystine for more than 10 years. The MOQ of L-Cystine is 500 kgs, if you need only a small amount, please contact the local distributor of L-Cystine. Any suggestions and questions about the L-Cystine, please send Email to, we will reply within 24 hours.


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L-Cystine, CAS# 56-89-3, is a amino acid manufactured through fermentation, available as white crystalline powder . L-Cystine is widely used as nutrition supplements. It is widely accepted as safe food additive in many countries. As a professional supplier and manufacturer of food additives, Foodchem International Corporation has been supplying quality L-Cystine to customers all over the world for over 10 years. If you have any questions or wish to receive a quote, please feel free to reach us by email: or by phone: +86 21 2206 3075. Our sales person will get back to you in 1 working day.

  • Specification
  • FAQ
  • In-Depth
Specific rotatory power[α] D20-215º -225º
Clarity≥ 98.0%
Ammonium salt[NH4]≤ 0.02%
Chloride[CL]≤ 0.02%
Residue on ignition≤ 0.10%
Sulfate[SO4]≤ 0.02%
Iron salt[Fe]≤ 10 ppm
Heavy metal[Pb]≤10 ppm
Arsenic salt≤1 ppm
Other amino acidColor layer can not be checked out.
Loss on drying0.20%
Content98.5 -101.0%

Quality Control

At Foodchem International Corporation, we apply strict quality control process to all our products. All L-Cystine we provide has been strictly tested under Kosher, Halal, HACCP and ISO standards and proved to be safe for using as food additive.

Storage&Handling Precaution

Storage: L-Cystine should be stored in tight containers at controlled room temperature.
Handling Precaution: Handling of L-Cystine should only be performed by personnel trained and familiar with handling of organic chemicals. Avoid skin and eye contact and breathing in dust. Avoid handling which leads to dust formation.

Application and Uses of L-Cystine

L-Cystine is a amino acid widely used as nutrition supplements in food and beverage industries. As a nutrition supplements, L-Cystine can be used in a wide variety of industries including: food production, beverage, pharmaceutical, cosmetics, agriculture/animal feed, and various other industries.
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