24-DB

Synonyms: 4-(2,4-Dichlorophenoxy)butyric acid

CAS Number: 94-82-6

SERIOUS
health hazard

MODERATE
health hazard

FEW OR NO
health hazards

0 79
80 89
90 100
60

Sources of exposure:

Food
Pesticides

Agricultural herbicides, treated forage crops, legumes, agricultural spray drift, and potential residues in food or animal feed

Description:

2,4-DB, or 4-(2,4-dichlorophenoxy)butyric acid, is a selective phenoxy herbicide used to control broadleaf weeds in certain agricultural crops. It is converted within susceptible plants to 2,4-D, which produces its herbicidal effects. Exposure may occur during application, through contact with treated vegetation, or through agricultural residues.

Health concerns:

Reproductive Toxicity

May alter hormone function and harm reproduction.

Developmental Toxicity

May impact fetal development and birth outcomes.

Ecotoxicity

May be toxic to ecosystems and wildlife.

Banned/restricted lists:

  • California Proposition 65 - OEHHA - developmental
  • male

References

  1. US Environmental Protection Agency. Cheminformatics Modules, Computational Toxicology and Exposure Informatics (CompTox). California Department of Public Health. California Safe Cosmetics Reportable Ingredients List.

HOW MILLION MARKER SCORES CHEMICALS

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We identified key chemicals based on a database compiling dozens of authoritative sources, screening tools, and QSAR models.

Hazard scores within 11 different health categories (carcinogens, endocrine disruptors, reproductive toxicants, developmental toxicants, genotoxicity, neurotoxicity, organ system toxicity, immunotoxicity, respiratory toxicity, skin/eye/respiratory irritants, and ecotoxicity).

They are weighted based on several factors, including strength of evidence for adverse impacts in humans, severity, and potential contamination.