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O-Desmethyl-cis-tramadol is the primary, active metabolite of tramadol, marketed as the opioid analgesic Ultram or Tramal, for the treatment of moderate to moderately severe pain. This new stable-labeled internal standard is suitable for the quantitation of O-Desmethyl-cis-tramadol in biological samples using GCMS or LCMS with numerous applications including forensic or clinical toxicology analysis, urine drug testing, or isotope dilution methods.
Recommended Storage Condition
Freeze (-20°C)
