MSDS

Bayer Environmental Science
Material Safety Data Sheet
MSDS Number: 102000012304
BAYER ADVANCED ALL-IN-ONE LAWN WEED AND
CRABGRASS KILLER CONCENTRATE
MSDS Version 2.2
Page 6 of 10
Chronic Toxicity
MSMA caused effects in the gastrointestinal tract, particularly the large intestine,
and the kidney following oral exposure.
2,4-D caused effects in the thyroid, eyes, kidneys, adrenals, and ovaries/testes
at dose levels above the saturation of renal clearance in chronic studies in
laboratory animals.
MCPP-p caused kidney effects in chronic toxicity studies in rats and mice.
MCPP-p did not target any organs in a chronic study in dogs.
Dicamba did not target any organs in chronic toxicity studies in rats and dogs.
Assessment Carcinogenicity
MSMA has been classified by EPA as "no evidence for carcinogenicity" based on the lack of evidence of
carcinogenicity in rats and mice.
2,4-D was not carcinogenic in lifetime feeding studies in rats and mice. EPA has classified 2,4-D as a
Group D chemical [not classifiable as to human carcinogenicity].
MCPP-p was not carcinogenic in a lifetime feeding study in rats but caused an increased incidence of lung
tumors in male mice.
Dicamba was not carcinogenic in lifetime feeding studies in rats and mice. EPA has classified dicamba
"not likely to be carcinogenic to humans."
ACGIH
Sodium methylarsonate 2163-80-6 Group A1
2,4-D, dimethylamine salt 2008-39-1 Group A4
NTP
Sodium methylarsonate 2163-80-6
IARC
Sodium methylarsonate 2163-80-6 Overall evaluation: 1
OSHA
Sodium methylarsonate 2163-80-6
Reproductive &
Developmental Toxicity
REPRODUCTION:
MSMA was not a reproductive toxicant in a two-generation study in rats.
2,4-D caused reproductive toxicity at dose levels above the saturation of renal
clearance in multi-generation studies in rats.
MCPP-p was not a reproductive toxicant in a two-generation study in rats.
Dicamba was not a primary reproductive toxicant in a two-generation
reproduction study in rats. Reproductive effects were observed only at doses
that caused parental systemic toxicity. Offspring toxicity was manifested at a
dose lower than parental systemic toxicity.
DEVELOPMENTAL TOXICITY: