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Registry of Toxic Effects of Chemical Substances (RTECS)

Acetic acid, ((3,5,6-trichloro-2-pyridinyl)oxy)-, 2-butoxyethyl ester

RTECS #

AJ8970000

CAS #

64700-56-7

Updated

February 2005

Molecular Weight

356.65

Molecular Formula

C13H16Cl3NO4

Synonyms

((3,5,6-Trichloro-2-pyridinyl)oxy)acetic acid 2-butoxyethyl ester
Butoxyethyl ester triclopyr
Garlon 4
Garlon 4E
M 4021

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
inhalation/mammal (species unspecified) lethal concentration (50 percent kill): >4.8 gm/m3/4HFEREAC 67,58712,2002
oral/mammal (species unspecified) lethal dose (50 percent kill): 803 mg/kgFEREAC 67,58712,2002
skin/mammal (species unspecified) lethal dose (50 percent kill): >2000 mg/kgFEREAC 67,58712,2002

Other Multiple Dose Data and References

Route/OrganismDoseEffectReference
oral/domestic bird lowest published toxic dose: 14400 mg/kg/8D- continuousNutritional and Gross Metabolic: Weight loss or decreased weight gain

Related to Chronic Data: Death in the "MULTIPLE DOSE" data type field
JWIDAW 30,319,1994
oral/domestic bird lowest published toxic dose: 14500 mg/kg/29D- continuousBehavioral: Somnolence (general depressed activity)

Behavioral: Food intake (animal)

Related to Chronic Data: Death in the "MULTIPLE DOSE" data type field
JWIDAW 30,319,1994
oral/rat lowest published toxic dose: 2520 mg/kg/90D- intermittentKidney, Ureter, and Bladder: Changes in kidney weightFEREAC 67,58712,2002
oral/rat lowest published toxic dose: 630 mg/kg/90D- intermittentBlood: Normocytic anemiaFEREAC 67,58712,2002

Standards and Regulations

OrganizationStandardReference
Environmental Protection Agency (EPA) Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATIONFEREAC 54,7740,1989
Environmental Protection Agency (EPA) Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) 1998 STATUS OF PESTICIDESRED CompletedRBREV* -,215,1998
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