Brifentanil

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 of brifentanil are very similar to those of alfentanil, with strong but short lasting analgesia and sedation, and particularly notable itching and respiratory depression. The directory classifies it as a unknown/inactive API with a synthetic source/manufacturing origin. Other names for this substance include Acetamide, N-(1-(2-(4-ethyl-4, 5-dihydro-5-oxo-1H-tetrazol-1-yl)ethyl)-3-methyl-4-piperidinyl)-N-(2-fluorophenyl)-2-methoxy-, cis-, 1-(2-(4-ethyl-4 and 5-dihydro-5-oxo1H-tetrazolyl)ethyl)-3-methyl-4-(N-(2-fluorophenyl)methoxyacetamido)piperidine. It is listed as a controlled drug substance (Schedule II). Its PubChem CID is 60672.

CAS No 101345-71-5
Molecular Formula C20H29FN6O3
Molecular Weight 420.5 g/mol
Synonyms N-[(3R,4S)-1-[2-(4-ethyl-5-oxotetrazol-1-yl)ethyl]-3-methylpiperidin-4-yl]-N-(2-fluorophenyl)-2-methoxyacetamide

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