Brifentanil

DB09172ExperimentalIllicitSmall molecule

Brifentanil (also known as A-3331) is an analog of fentanyl, a potent opioid. This drug is classified as an opioid analgesic and was developed in the early 1990s. The effects... The effects of brifentanil are very similar to those of alfentanil, with strong but short lasting analgesia and sedation, and particularly notable itching and respiratory depression.

Chemical structure of Brifentanil
Formula / weight
C20H29FN6O3 ยท 420.489 g/mol (avg)
Code names
A-3331

Resolves to

Structure
InChIKeyKKMGCTVJCQYQPV-WBVHZDCISA-NSMILESCCN1N=NN(CCN2CC[C@@H]([C@H](C)C2)N(C(=O)COC)C2=CC=CC=C2F)C1=O

Which companies are running trials of Brifentanil, in which indications and phases, and which of those programs are still active?

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