A Certified Reference Material
Features
  • This product is qualified as a Certified Reference Material (CRM) that has been manufactured and tested to meet ISO/IEC 17025 and ISO 17034 international standards
  • This CRM has been characterized by metrologically valid procedures and may be used as a quantitative analytical reference standard
  • Certificate of analysis provides the certified property values and the associated uncertainties, including a statement of metrological traceability for the certified values
  • Bulk material is available for qualified institutions; please contact our sales department for pricing
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4-hydroxy Xylazine (CRM)

A 1 mg/ml solution in methanol

Item No. 39607

Safety Data Sheet (SDS) (PDF)
Synonyms
Synonyms
  • p-hydroxy Xylazine
  • para-hydroxy Xylazine
Technical Information
Formal Name
4-[(5,6-dihydro-4H-1,3-thiazin-2-yl)amino]-3,5-dimethyl-phenol
CAS Number
145356-32-7
Molecular Formula
C12H16N2OS
Formula Weight
236.3
Formulation
A 1 mg/ml solution in methanol
SMILES
CC1=CC(O)=CC(C)=C1NC2=NCCCS2
InChi Code
InChI=1S/C12H16N2OS/c1-8-6-10(15)7-9(2)11(8)14-12-13-4-3-5-16-12/h6-7,15H,3-5H2,1-2H3,(H,13,14)
InChi Key
FXWQWFCVDXMJNM-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Wet ice in continental US; may vary elsewhere
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    1 mg

    $226

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    Product Description

    4-hydroxy Xylazine (CRM) (Item No. 39607) is a certified reference material categorized as an anesthetic metabolite.1 4-hydroxy Xylazine is a metabolite of xylazine (Item Nos. 37854 | 22641). It has been used as a marker for xylazine doping in horses.2,3 This product is intended for analytical forensic applications. This product is also available as a general research tool (Item No. 22920).

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Mutlib, A.E., Chui, Y.C., Young, L.M., et al. Characterization of metabolites of xylazine produced in vivo and in vitro by LC/MS/MS and by GC/MS. Drug Metab. Dispos. 20(6), 840-848 (1992).

    2. Spyrodaki, M.-H., Lyris, E., Georgoulakis, I., et al. Determination of xylazine and its metabolites by GC-MS in equine urine for doping analysis. J. Pharm. Biomed. Anal. 35(1), 107-116 (2004).

    3. Kwok, W.H., Choi, T.L.S., Tsoi, Y.Y.K., et al. Screening of over 100 drugs in horse urine using automated on-line solid-phase extraction coupled to liquid chromatography-high resolution mass spectrometry for doping control. J. Chromatogr. A 1490, 89-101 (2017).