Quick answer
2C-I is typically detectable in urine for roughly 6–24 hours (specialised assay) after any use. It is not part of standard employment panels.
Not screened on standard employment panels.
Typical cutoff: Not on standard panels; requires a dedicated assay. Urine is typically positive for several hours to about a day.
Detection window by test type
| urine | |
|---|---|
| Any use | roughly 6–24 hours (specialised assay) |
| saliva | |
| Any use | limited data |
| hair | |
| Any use | detectable on specialised testing |
| blood | |
| Any use | hours |
Ranges reflect typical published detection windows and vary with dose, frequency, body composition, hydration and the assay used.
Key details
2C-I is a synthetic psychedelic of the phenethylamine family. It is not part of the standard 5-, 10- or 12-panel or DOT tests.
Detection requires a dedicated mass-spectrometry assay; routine workplace panels will miss it.
Detection windows for designer psychedelics are less standardised and are best confirmed with the laboratory.
How 2C-I is tested
Not on standard panels; requires a dedicated assay. Urine is typically positive for several hours to about a day. Screening immunoassays are presumptive — a non-negative screen is confirmed by GC-MS or LC-MS/MS at a lower cutoff before it is reported as positive. It is not part of the standard 5-, 10- or 12-panel or DOT tests.
Legal status
Schedule I.
Frequently asked questions
How long does 2c-i stay in your system?
In urine, typical detection is roughly 6–24 hours (specialised assay). Hair can detect use for up to 90 days and saliva/blood windows are usually shorter.
Will 2c-i show up on a standard drug test?
No — 2C-I is not part of the standard 5-, 10- or 12-panel or DOT tests. It would require a specialised or expanded assay.
How accurate are these detection windows?
They are typical ranges from published literature and assay documentation, not guarantees. Clearance depends on dose, frequency, metabolism and the specific test cutoff used.
2C-I testing by state
Related substances
Cite this page
DrugPanels. “2C-I Detection Time.” https://drugpanels.com/detection/2c-i/. Accessed 2026-09-11.
Sources
- NIDA research monographs on drug testing and pharmacokinetics — National Institute on Drug Abuse — nida.nih.gov
Detection windows describe typical ranges from the published literature and assay documentation; individual results vary. See our methodology.