18,033 samples completed from 41 states. Last updated Monday, December 15, 2025.
815021
From Grand Rapids, Michigan on December 1, 2025
Assumed to be ketamine
2 major substances detected:
- dimethyl sulfone (methylsulfonylmethane MSM)
- ketamine
Looks = white, powder
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Major substances in graph:
Peak: 2.18 = dimethyl sulfone (methylsulfonylmethane MSM)
Peak: 6.99 = ketamine
Method(s): GCMS
Record for Sample 815021 last updated December 11, 2025