An internal standard for the quantification of cystine
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DL-Cystine-d4

Item No. 30902

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
Cystine-3,3,3′,3′-d4
CAS Number
108641-83-4
Molecular Formula
C6H8D4N2O4S2
Formula Weight
244.3
Purity
≥99% deuterated forms (d1-d4)
Formulation (Request formulation change)
A solid
Solubility(Learn about Variance in Solubility)
1N HCl: SolubleWater: Slightly soluble
SMILES
OC(C(N)C([2H])([2H])SSC([2H])([2H])C(N)C(O)=O)=O
InChi Code
InChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/i1D2,2D2
InChi Key
LEVWYRKDKASIDU-LNLMKGTHSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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Certificates of Analysis & Batch Specific Data

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    50 mg

    $107

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    100 mg

    $203

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    250 mg

    $477

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    Product Description

    DL-Cystine-d4 is intended for use as an internal standard for the quantification of cystine by GC- or LC-MS. DL-Cystine is a racemic mixture of D- and L-cystine. D-Cystine is an inactive enantiomer of L-cystine (Item No. 31727), an oxidized form of cysteine (Item No. 33309).1

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Baker, D.H., and Harter, J.M. D-cystine utilization by the chick. Poult. Sci. 57(2), 562-563 (1978).