MSDS
Bayer Environmental Science 
Material Safety Data Sheet 
MSDS Number: 102000012315 
BAYER ADVANCED BRUSH KILLER PLUS READY-TO-
SPRAY 
MSDS Version 2.0 
  Page 5 of 7 
Acute Inhalation Toxicity 
rat: LC50: > 5.2 mg/l 
Exposure time: 4 h 
Determined in the form of liquid aerosol. 
(actual) 
rat: LC50: > 20.8 mg/l 
Exposure time: 1 h 
Determined in the form of liquid aerosol. 
Extrapolated from the 4 hr LC50. 
(actual) 
Skin Irritation 
No skin irritation. 
Eye Irritation 
Moderate eye irritation. 
Sensitization 
guinea pig: Non-sensitizing. 
Chronic Toxicity 
Long-term dietary exposure to triclopyr caused liver, kidney, adrenal and 
mammary gland effects when tested in rats, mice and/or dogs. 
Assessment Carcinogenicity 
EPA classified triclopyr as a Group D chemical (not classifiable as to human carcinogenicity) based on 
what was considered only marginal responses in the mammary and adrenal glands of rodents, and the 
absence of additional support from structural analogs or genotoxicity. 
ACGIH 
Ethanol 64-17-5 Group A4 
NTP 
Ethanol  64-17-5   
IARC 
OSHA 
None. 
Reproductive & 
Developmental Toxicity 
REPRODUCTION: Triclopyr was not a reproductive toxicant at non-maternally 
toxic dose levels in a two-generation study in rats. 
DEVELOPMENTAL TOXICITY: Triclopyr is not a primary developmental toxicant 
in rats and rabbits. Developmental effects were observed at doses that caused 
maternal toxicity. 
Mutagenicity 
Triclopyr was non-mutagenic in a battery of in vitro and in vivo mutagenicity 
studies. 
SECTION 12. ECOLOGICAL INFORMATION 







