Carfentanil powder or carfentanyl powder (often known as 4-carbomethoxyfentanyl) is definitely an analog of your artificial opioidanalgesic fentanyl. It is 10,000 instances more potent than morphine, rendering it Amongst the most powerful commercially employed opioids. Carfentanil was very first synthesized in 1974 by a staff of chemists at Janssen