Carfentanil/Remifentanil

Carfentanil or carfentanyl (also known as 4-carbomethoxyfentanyl) is an analogue of the synthetic opioid analgesic fentanyl. It is 10,000 times more potent than morphine, making it among the most potent commercially used opioids. Carfentanil was first synthesized in 1974 by a team of chemists at Janssen Pharmaceutica.

Side effects of carfentanil are similar to those of fentanyl, which include itching, nausea and respiratory depression, which can be life-threatening. Fentanyl analogues have killed hundreds of people throughout Europe and the former Soviet republics since the most recent resurgence in use began in Estonia in the early 2000s, and novel derivatives continue to appear.

Carfentanil is classified as Schedule II under the Controlled Substances Act in the United States. In 2016, carfentanil was identified as an additive in heroin sold in Ohio, leading to a spike in the number of overdose cases.

Product Number: CFE10185

Contact Us

Cross Reactivity

AnalyteLODMatricesCompoundsCross Reactivity %
Carfentanil / Remifentanil2 ngl/mLWhole Blood, Post Mortem Blood, UrineRemifentanil100
Carfentanil162.6
Remifentanil acid90.9
Norcarfentanil65.5
Alfentanyl30.2
Sufentanil12.8
Norsufentanil2.2
Lofentanil0.3
Fentanyl0.1
Benzylfentanyl0.1
Ohmefentanyl0.1
cis-Mefentanyl0.1
3-Methylthiofentanyl0.1
*LOD is standardised to this compound