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US 4,071,522 AGranted
Tritiated O-benzoylecgonine
AssigneeHoffmann-La Roche Inc.
InventorsJames Gordon Christenson, Richard R. Muccino
Life of this patent
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Abstract
The present disclosure relates to tritiated labeled benzoylecgonines. The labeled benzoylecgonines described herein are useful in immunoassays for benzoylecgonine, a metabolite of cocaine.
Claims3
O-(o-iodobenzoyl)ecgonine
O-benzoylecgonine-.sup.3 H having a specific activity greater than 1mCi/mg.
Dependencies are inferred from the claim text.