Carfentanil / Remifentanil

Carfentanil or carfentanyl (also known as 4-carbomethoxyfentanyl) is an analog 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 analogs 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.

Whole Blood
Post Mortem Blood
Oral Fluid
Vitreous Humor

Cross Reactivity

Analyte Compound
Cross Reactivity %
Carfentanil / Remifentanil
LOD: 2ng/ml
Remifentanil 100
Remifentanil acid

All data in the above table refers to our urine matrix.

Microplate Readers Available

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  • Semi-automated robust microplate reader
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