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But cartels adapted their recipe, turning to a liquid called phenyl-2-propanone, or P2P.

In this case, a chemical group called a pyrrole-2-carbonyl acts as a rotor that revolves above a stationary group called a phenyl-2-carbonyl.

Ph, phenyl group; Me, methyl group.

The cartels reverted to using phenyl-2-propanone, known as P2P, a method popularized by biker gangs in the 1970s.

Furthermore, it was demonstrated that the phenyl ether substituent and phenanthrene shelf were forced into a PD stacking interaction in the folded conformation.