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D-Cysteine 1 g

Usually Ships within 48 hrs.


((S)-2-Amino-3-mercaptopropionic acid, β-Mercaptoalanine)

Purity > 99.0%

  CAS Number:
  Chemical Formula:
  Molecular Weight:
  121.160 g/mol


D-cysteine is an unnatural amino acid and a powerful inhibitor of Escherichia coli growth.

White to slightly off-white crystalline powder

Store at -15°C, protect from light and air.

Free Shipping within the Continental USA

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  Acros Organics    25430-0010

Celebrity Endorsements

Nagasawa, T.; et. al. (1985) d-Cysteine desulfhydrase of Escherichia coli. European Journal of Biochemistry. Vol. 153. 541-551.

-Although D-cysteine is an unnatural amino acid, however it was been shown that there are intestinal enzymes of certain bacteria that do utilize this amino acid.

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