Iprodione in the yard and garden

What is iprodione?

CAS number

36734-19-7

Molecular formula

C13H13Cl2N3O3

Molecular weight

330.17 g/mol

SMILES

CC(C)NC(=O)N1CC(=O)N(C1=O)C2=CC(=CC=C2)Cl

PubChem CID

37517

Regulatory consensus

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

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 iprodione

• Pesticide
• Food Contaminant

Safer alternatives

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

• 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×
• Cyprodinil
  Trade-offs: Removes 95-99% of dissolved contaminants including metals, PFAS, nitrates; wastes 2-4 gallons per gallon produced (improving with newer systems); removes beneficial minerals; $0.05-0.25/gallon; requires pre-treatment for longevity.
  Relative cost: 1.2-2×

Frequently asked questions