604586

From Suffolk County, New York on March 2, 2026

Assumed to be heroin

3 major substances detected:

4-ANPP
fentanyl
phenethyl 4-ANPP

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 = white, powder

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

Major substances in graph:

Peak: 9.23 = 4-ANPP

Peak: 10.44 = fentanyl

Peak: 14.02 = phenethyl 4-ANPP

Method(s): GCMS

Record for Sample 604586 last updated March 10, 2026