Acetaminophen-D₄, 100 μg/mL

A stable-labeled internal standard suitable for quantitation of acetaminophen levels in urine, serum, or plasma by LC/MS or GC/MS for clinical toxicology, isotope dilution methods, P450 studies, and other pharmaceutical research. Acetaminophen, or Paracetamol, is a common over-the-counter COX inhibitor drug used for pain relief and fever reduction.

Recommended Storage Condition
Freeze (-20°C)