$FERMOPURE<sup>®</sup> L-Cysteine PHARMA FB

L-Cysteine Free Base

L-CYSTEINE FREE BASE Pharma is a white powder or colourless crystals. L-Cysteine is one of the 20 natural amino acids and, besides methionine, the only one which contains sulfur. WACKER has developed a new production method for this amino acid via fermentation from nonanimal and non-human raw materials.

  • CAS No. 52-90-4
  • Empirical formula C3H7NO2S
  • Molecular weight 121.16


  • White powder
  • Content min. 98.0-101.0%
  • free base
  • BSE/TSE-free
  • Certified as kosher and halal
  • Produced from L-Cystine obtained from vegetarian fermentation


  • Excipient for API synthesis, e.g. expectorants
  • Essential ingredient in cell culture media
  • Potential use as environmentally friendly corrosion inhibitor


Units of 25 kg


L-CYSTEINE FREE BASE Pharma has a shelf life of at least 24 months when stored in unbroken original packaging in dry storage areas. The best use before date of each batch is shown on the product label.
Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Sales and support

Wacker Chemical Corporation
3301 Sutton Road
Adrian, MI 49221-9397
United States
+1  888  922-5374 (Phone)

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