820016

From Denver, Colorado on June 4, 2026

Assumed to be fentanyl

2 major substances detected:

4-ANPP
fentanyl

Fentanyl is potent and the amount changes by batch. If you weren't expecting it, consider getting test strips online or from a harm reduction program. Carry naloxone (Narcan) to reverse overdoses. Don't use alone so someone can help if you go out.

Looks = unknown, residue

Need free supplies and advice to keep you safe? Find your nearest harm reduction program at harmreduction.org

Major substances in graph:

Peak: 9.17 = 4-ANPP

Peak: 10.34 = fentanyl

Method(s): GCMS

Record for Sample 820016 last updated June 11, 2026