2,4-DB

chembox new
Reference=cite web|url=http://extoxnet.orst.edu/pips/24-DB.htm|title=Extension Toxicology Network: Pesticide Information Profiles]
ImageFile=2,4-DB.pngImageSize=200px
IUPACName=4-(2,4-dichlorophenoxy)butanoic acid
OtherNames=
Section1=Chembox Identifiers
CASNo=94-82-6
PubChem=1489
SMILES=C1=CC(=C(C=C1Cl)Cl)OCCCC(=O)O
Section2=Chembox Properties
Formula=C₁₀H₁₀Cl₂O₃
MolarMass=249.09 g/mol
Appearance=Colorless to white crystal
Density=
MeltingPt=117-119 °C
BoilingPt=
Solubility=46 mg/L
Section3=Chembox Hazards
MainHazards=
FlashPt=
Autoignition=

2,4-DB or 4-(2,4-dichlorophenoxy)butyric acid is a selective systemic phenoxy herbicide used to control many annual and perennial broadleaf weeds in alfalfa, peanuts, soybeans, and other crops. Its active metabolite, 2,4-D, inhibits growth at the tips of stems and roots. It is classified in toxicity class III. It shows some evidence of toxicity to dogs and cats, such as changes in body weight and reduced numbers of offspring, when fed 25-80 milligrams per kilogram of body weight for prolonged periods. Tests of carcinogenicity in this range yielded differing results. It is moderately toxic to fish.

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