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N-Desmethyl U-47700 is a synthetic opioid that has gained popularity in recent years due to its potent analgesic effects.It is an analog of U-47700, a potent opioid agonist that was first synthesized in the 1970s for research purposes. N-Desmethyl U-47700 is a derivative of U 47700, and has been gaining popularity as a research chemical due to its high potency and low cost.

What is u 47700


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