Outdoor & Yard / Compounds / Procymidone

Procymidone in the yard and garden

Moderate risk for your yard

Anti-androgen — competitive AR antagonist. Similar to vinclozolin.

What is procymidone?

CAS number
32809-16-8
Molecular formula
C13H11Cl2NO2
Molecular weight
284.14 g/mol
SMILES
CC1(CC(=O)N(C1=O)C2=CC(=C(C=C2)Cl)Cl)C
PubChem CID
38779

Risk for people, pets,

Moderate risk

Anti-androgen — competitive AR antagonist. Similar to vinclozolin.

Regulatory consensus

2 regulatory and scientific bodies have classified Procymidone. The classifications differ — that's the data.

AgencyYearClassificationNotes
EU2007Not approved — EDC concern
Japan2010Registered with MRLs

Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.

Where your yard encounter procymidone

  • Pesticide
  • Food Contaminant

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Procymidone:

  • Fludioxonil
    Trade-offs: Alternative approach; specific tradeoffs depend on application context, scale, and regulatory requirements. Full hazard assessment of alternative recommended before adoption to avoid regrettable substitution.
    Relative cost: 1.2-2×
  • Boscalid
    Trade-offs: Alternative approach; specific tradeoffs depend on application context, scale, and regulatory requirements. Full hazard assessment of alternative recommended before adoption to avoid regrettable substitution.
    Relative cost: 1.2-2×

Frequently asked questions

Is procymidone safe for your yard?

Anti-androgen — competitive AR antagonist. Similar to vinclozolin.

See Procymidone in the outdoor app

Look up products containing procymidone, compare to alternatives, and explore the full data record.

Open in outdoor View raw API data

Sources (1)
  1. —

Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for veterinary, medical, legal, or regulatory advice. Why we built ALETHEIA →