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Provide batch numbers separated by commas to download or request available product inserts, QC sheets, certificates of analysis, data packs, and GC-MS data.

Our free, searchable, GC-MS spectral database contains 70eV EI mass spectral data of 2,000+ of Cayman’s forensic drug standards.
DOWNLOAD THE DATABASE(+)-Norpropoxyphene-d5 (maleate) (Item No. 15838) is an analytical reference standard intended for use as an internal standard for the quantification of norpropoxyphene (Item No. 15291) by GC- or LC-MS. Norpropoxyphene is categorized as an opioid.1 It is a metabolite of propoxyphene (Item Nos. 22769| ISO60184).2 This product is intended for research and forensic applications.
WARNING This product is not for human or veterinary use.
1. Urine drug testing of chronic pain patients. III. Normetabolites as biomarkers of synthetic opioid use. J. Anal. Toxicol. 34(8), 444-449 (2010).
2. Unstable propoxyphene metabolite excreted in human urine is detected by liquid chromatography-