Outdoor & Yard / Compounds / Trifluralin

Trifluralin in the yard and garden

Moderate risk for your yard

Trifluralin — herbicide.

What is trifluralin?

Also known as: Treflan, 2,6-Dinitro-N,N-dipropyl-4-(trifluoromethyl)aniline, Elancolan, Tristar.

CAS number
1582-09-8
Molecular formula
C13H16F3N3O4
Molecular weight
335.28 g/mol
SMILES
CCCN(CCC)C1=C(C=C(C=C1[N+](=O)[O-])C(F)(F)F)[N+](=O)[O-]
PubChem CID
5569

Risk for people, pets,

Moderate risk

Trifluralin — herbicide.

Regulatory consensus

1 regulatory bodyhas classified Trifluralin.

AgencyYearClassificationNotes
EDC Assessment—Suspected endocrine disruptor

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 trifluralin

  • Agricultural Products — crop treatment

Safer alternatives

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

  • Organic mulching; Mechanical weeding; IPM
    Trade-offs: Labor-intensive; effective for small-scale or precision applications; no chemical residues; not scalable to large commercial operations without significant cost increase.
    Relative cost: 2-5× conventional

Frequently asked questions

Is trifluralin safe for your yard?

Trifluralin — herbicide.

What products contain trifluralin?

Trifluralin appears in: crop treatment (Agricultural products).

See Trifluralin in the outdoor app

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

Open in outdoor View raw API data

Sources (1)
  1. PubChem (2026) — database

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 →