Florida 7‑Hydroxymitragynine Update
Florida has introduced two new regulations limiting 7‑hydroxymitragynine (7‑OH) to 400 ppm (0.04%) on a dry‑weight basis and implementing new labeling requirements for kratom products.
To align with these requirements, Cora Science has introduced Test Code 813. When ordered alongside either our standard or expanded Mitragyna alkaloids assays, this package adds moisture content analysis which our team then uses to calculate the dry‑weight corrected 7‑hydroxymitragynine result, which we report in ppm in a dedicated table at the end of your report.
Dry‑weight correction normalizes results to 0% moisture so that ppm reflects the analyte concentration in the solids fraction. For reference, 400 ppm equals 400 mg/kg, which is equivalent to 0.04% w/w.
Conversion equation (using measured moisture):
ppm(dry) = ppm(as‑is) ÷ (1 − moisture_fraction)- Unit conversions:
ppm = (% w/w) × 10,000;ppm = (mg/g) × 1,000
Example: a product shows 7‑OH at 0.028 w/w% (as‑is) with 12% moisture. The solids fraction is 0.88, so ppm(dry) = 280 ÷ 0.88 = 318 ppm, which is below the 400 ppm action limit.
Test Code 813 is available for raw leaf, extracts, capsules, and liquid products. If you sell or ship kratom products into Florida, consider enabling 813 on your panel and updating COA templates to include the required ppm (dry weight) value.
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