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17,981 samples completed from 41 states. Last updated Thursday, December 11, 2025.
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602813

From Concord, North Carolina on February 27, 2025

Assumed to be fentanyl

3 major substances detected:

  • dimethyl sulfone (methylsulfonylmethane MSM)
  • 4-ANPP
  • fentanyl

And we also found traces of xylazine + ethyl 4-ANPP + phenethyl 4-ANPP. Trace substances in small quantities are usually harmless, but can sometimes cause health problems. Unexpected sensations may be due to these.

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.

Xylazine causes serious skin problems. These can happen anywhere on the body and don't heal quickly. And, xylazine can come on stronger than traditional dope and knock you out, so be mindful of your surroundings. It's best to avoid dope with xylazine. You might need medical attention to prevent long-term damage.

Looks = blue, pill

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

Major substances in graph:

Peak: 2.19 = dimethyl sulfone (methylsulfonylmethane MSM)

Peak: 9.01 = 4-ANPP

Peak: 10.11 = fentanyl

Method(s): GCMS

For pills and fake pills, you may see extra peaks on the left hand part of the chromatogram. These represent fillers and trace chemicals from the pill binder. These substances are better isolated using infrared light (FTIR), and GCMS only provides limited information. See note below under 'What we can and can't tell'. Contact us if you want details.

Record for Sample 602813 last updated December 2, 2025