603443
From Pittsburgh, Pennsylvania on June 12, 2025
Assumed to be heroin, fentanyl
This is a messy brew of 7 major substances:
- tetramethyl-4-AP
- tetramethylnorfentanyl
- procaine
- 4-ANPP
- fentanyl
- quinine
- bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate
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.
There are a lot of different substances in this sample. We don't know the harms that some of these can cause. Be careful and be prepared for unexpected reactions.
Looks = brown, powder
Need free supplies and advice to keep you safe? Find your nearest harm reduction program at harmreduction.org
Major substances in graph:
Peak: 6.72 = tetramethyl-4-AP
Peak: 7.44 = tetramethylnorfentanyl
Peak: 7.67 = procaine
Peak: 9.16 = 4-ANPP
Peak: 10.31 = fentanyl
Peak: 10.9 = quinine
Peak: 12.32 = bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate
Method(s): GCMS
Record for Sample 603443 last updated June 27, 2025