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A false negative in screening tests (e.g., Steroid testing of athletes) represents the event that:
P-Diethylbenzene
A type of diethylbenzene where the ethyl groups are attached to para positions on a benzene ring, providing unique chemical properties.
Proton Spin Decoupled
A technique in NMR spectroscopy where the interaction between proton spins is removed, simplifying the spectrum and making it easier to interpret chemical environments.
Proton Spin Decoupled
A technique in NMR spectroscopy where the interaction between proton spins is removed, simplifying the spectrum.
1,3-Dichlorobenzene
An organic compound that consists of a benzene ring with two chlorine atoms attached at the 1st and 3rd positions.
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