A racemic mixture of D- and L-cysteine
Related Products
Isomer(s)
33309L-Cysteine
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DL-Cysteine

Item No. 41968

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
CAS Number
3374-22-9
Synonyms
  • (±)-Cysteine
  • (R,S)-Cysteine
  • NSC 63864
Molecular Formula
C3H7NO2S
Formula Weight
121.2
Purity
≥95%
Formulation (Request formulation change)
A solid
Solubility(Learn about Variance in Solubility)
PBS (pH 7.2): Soluble: ≥10 mg/ml
SMILES
O=C(C(CS)N)O
InChi Code
InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)
InChi Key
XUJNEKJLAYXESH-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Wet ice in continental US; may vary elsewhere
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Certificates of Analysis & Batch Specific Data

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    1 g

    $28

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    5 g

    $110

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    Product Description

    DL-Cysteine is a racemic mixture of D-cysteine and L-cysteine (Item No. 33309).1 It prevents gastric ulceration induced by reserpine (Item No. 16474) and pyloric stenosis in rats when administered at a dose of 5% w/v.2 Cryoprotectants containing DL-cysteine (5 mM) improve motility and DNA integrity in frozen and thawed epididymal spermatozoa from cats.3

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Grishin, D.V., Zhdanov, D.D., Pokrovskaya, M.V., et al. D-amino acids in nature, agriculture and biomedicine. All Life 13(1), 11-22 (2020).

    2. Salim, A.S. Protection against chronic gastric ulceration in the rat with sulfhydryl-containing agents. J. Pharm. Sci. 81(7), 698-700 (1992).

    3. Thuwanut, P., Chatdarong, K., Techakumphu, M., et al. The effect of antioxidants on motility, viability, acrosome integrity and DNA integrity of frozen-thawed epididymal cat spermatozoa. Theriogenology 70(2), 233-240 (2008).