The MSDS format adheres to the standards and regulatory requirements
of the United States and may not meet regulatory requirements
in other countries.
DuPont Page 1
Material Safety Data Sheet
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"DuPont" "OUST" XP HERBICIDE
M0000437 Revised 20-JUN-2005
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CHEMICAL PRODUCT/COMPANY IDENTIFICATION
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# Material Identification
"OUST" is a registered trademark of DuPont.
"DuPont" is a trademark of DuPont.
Tradenames and Synonyms
SULFOMETURON METHYL
DPX-T5648
Company Identification
MANUFACTURER/DISTRIBUTOR
DuPont
1007 Market Street
Wilmington, DE 19898
PHONE NUMBERS
Product Information : 1-800-441-7515 (outside the U.S.
302-774-1000)
Transport Emergency : CHEMTREC 1-800-424-9300(outside U.S.
703-527-3887)
Medical Emergency : 1-800-441-3637 (outside the U.S.
302-774-1000)
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COMPOSITION/INFORMATION ON INGREDIENTS
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# Components
Material CAS Number %
SULFOMETURON METHYL 74222-97-2 75
(METHYL 2-[[[[(4,6-DIMETHYL-2-PYRIMIDINYL)-
AMINO]CARBONYL]AMINO]SULFONYL]BENZOATE)
INERT INGREDIENTS 25
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HAZARDS IDENTIFICATION
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Emergency Overview
CAUTION! Causes (moderate) eye injury (irritation). Avoid
contact with eyes or clothing.
M0000437 DuPont Page 2
Material Safety Data Sheet
(HAZARDS IDENTIFICATION - Continued)
Potential Health Effects
Based on animal data, skin contact with Oust XP may cause
irritation with discomfort or rash.
Based on animal data, eye contact with Oust XP may cause eye
irritation with discomfort, tearing, or blurring of vision.
Based on animal data, ingestion of high doses of Sulfometuron
Methyl may lead to red blood cell destruction.
Carcinogenicity Information
None of the components present in this material at concentrations
equal to or greater than 0.1% are listed by IARC, NTP, OSHA or ACGIH
as a carcinogen.
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FIRST AID MEASURES
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First Aid
IF IN EYES: Hold eye open and rinse slowly and gently with
water for 15-20 minutes. Remove contact lenses, if present,
after the first 5 minutes, then continue rinsing eye. Call
a poison control center or doctor for treatment advice.
IF INHALED: No specific intervention is indicated as the
product is not likely to be hazardous by inhalation.
Consult a physician if necessary.
IF ON SKIN OR CLOTHING: No specific intervention is
indicated as the product is not likely to be hazardous to
skin. Consult a physician if necessary.
IF SWALLOWED: No specific intervention is indicated
as compound is not likely to be hazardous by ingestion.
Consult a physician if necessary.
Have the product container or label with you when calling a
poison control center or doctor, or going for treatment. You
may also contact 1-800-441-3637 for emergency medical
treatment information.
M0000437 DuPont Page 3
Material Safety Data Sheet
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FIRE FIGHTING MEASURES
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Flammable Properties
Flammable limits in Air, % by Volume
LEL : 0.092 g/L
Not a fire or explosion hazard.
Like most organic powders or crystals, under severe dusting
conditions, this material may form explosive mixtures in air.
Extinguishing Media
Water Spray, Foam, Dry Chemical, CO2.
Fire Fighting Instructions
Wear self-contained breathing apparatus. Wear full protective
equipment. Use water spray. Runoff from fire control may be a
pollution hazard.
If area is exposed to fire and conditions permit, let fire burn
itself out. Burning chemicals may produce by-products more toxic
than the original material. If product is on fire, wear
self-contained breathing apparatus and full protective equipment.
Use water spray. Control runoff.
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ACCIDENTAL RELEASE MEASURES
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Safeguards (Personnel)
NOTE: Review FIRE FIGHTING MEASURES and HANDLING (PERSONNEL)
sections before proceeding with clean-up. Use appropriate
PERSONAL PROTECTIVE EQUIPMENT during clean-up.
Emergency Response - Chemical resistant coveralls, waterproof
gloves, waterproof boots and face/eye protection. If dusting
occurs, use NIOSH approved respirator protection.
Initial Containment
Dike spill. Prevent material from entering sewers, waterways, or
low areas.
Follow applicable Federal, State/Provincial and Local laws/
regulations.
Spill Clean Up
Shovel or sweep up.
M0000437 DuPont Page 4
Material Safety Data Sheet
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HANDLING AND STORAGE
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Handling (Personnel)
USERS SHOULD: Wash hands before eating, drinking, chewing gum,
using tobacco or using the toilet.
Avoid breathing vapors or mist. Avoid breathing dust. Avoid
contact with eyes, skin, or clothing. Wash thoroughly after
handling. Do not store or consume food, drink, or tobacco in
areas where they may become contaminated with this material.
Handling (Physical Aspects)
Avoid dust generation. Keep away from heat, sparks and flames.
Storage
Store product in original container only. Do not contaminate
water, other pesticides, fertilizer, food or feed in
storage.
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EXPOSURE CONTROLS/PERSONAL PROTECTION
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# Engineering Controls
Use only with adequate ventilation. Keep container tightly closed.
When handlers use closed systems, enclosed cabs, or aircraft
in a manner that meets the requirements listed in Worker
Protection Standard (WPS) for agricultural pesticides [40
CFR 170.240 (d) (4-6)], the handler PPE requirements may be
reduced or modified as specified in the WPS.
Personal Protective Equipment
Always follow the label instructions when handling this product.
Applicators and other handlers must wear:
Long-sleeved shirt and long pants.
Shoes plus socks.
Follow manufacturer instructions for cleaning and
maintaining PPE. If no such instructions for washables,
use detergent and hot water. Keep and wash PPE separately
from other laundry.
PPE required for early entry to treated areas that is
permitted under the Worker Protection Standard and that
involves contact with anything that has been treated, such
as plants, soil, or water, is:
Coveralls.
Chemical resistant gloves, category A (such as butyl
rubber, natural rubber, neoprene rubber, or nitrile
M0000437 DuPont Page 5
Material Safety Data Sheet
(EXPOSURE CONTROLS/PERSONAL PROTECTION - Continued)
rubber) all equal to or greater than 14 mils.
Shoes plus socks.
Exposure Guidelines
Applicable Exposure Limits
SULFOMETURON METHYL
PEL (OSHA) : None Established
TLV (ACGIH) : 5 mg/m3, 8 Hr. TWA, A4
AEL * (DuPont) : 10 mg/m3, 8 & 12 Hr. TWA
total dust
* AEL is DuPont鈥檚 Acceptable Exposure Limit. Where governmentally
imposed occupational exposure limits which are lower than the AEL
are in effect, such limits shall take precedence.
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PHYSICAL AND CHEMICAL PROPERTIES
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Physical Data
Solubility in Water : Dispersible
Odor : None
Form : Solid, dry flowable
Color : Off-white
Bulk Density (Loose) : 33 lb/cu ft
Bulk Density (Packed) : 39 lb/cu ft
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STABILITY AND REACTIVITY
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Chemical Stability
Stable at normal temperatures and storage conditions.
Incompatibility with Other Materials
None reasonably foreseeable.
Decomposition
Decomposition will not occur.
Polymerization
Polymerization will not occur.
M0000437 DuPont Page 6
Material Safety Data Sheet
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TOXICOLOGICAL INFORMATION
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Animal Data
Oust XP
Inhalation 4 hour LC50: > 5.3 mg/L in rats
(Very low toxicity by inhalation)
Skin absorption LD50: > 5000 mg/kg in rabbits
(Slightly to moderately toxic by contact)
Oral LD50: > 5000 mg/kg in rats
(Very low toxicity by ingestion)
Oust XP is a slight to mild skin irritant, and a mild eye
irritant, but is not a skin sensitizer in animals.
Single inhalation exposure with Oust XP (Sulfometuron Methyl 75%)
in rats caused slight to moderate body weight loss, nasal and
ocular discharge, and other nonspecific effects.
Single high oral doses of Oust XP (Sulfometuron Methyl 75%)
produced no clinical signs of toxicity and no lesions were
observed during pathological examination of tissue.
Repeated oral studies with the active ingredient, Sulfometuron
Methyl, caused decreased body weight gain, liver changes, red
blood cell hemolysis, and altered white blood cell counts.
Long-term exposure caused mild hemolytic anemia, decreased body
weight, alteration of clinical chemical parameters, and changes in
the bile duct.
Animal testing indicates that the active ingredient, Sulfometuron
Methyl, does not have carcinogenic effects. In a two generation
rat reproduction study with the active ingredient, Sulfometuron
Methyl, decreased numbers of pups were observed at the 5000 ppm
level, a dose that was also maternally toxic. No reproductive
effects were observed at 500 ppm.
Sulfometuron methyl did not produce developmental toxicity when
tested in animals. Sulfometuron methyl did not produce genetic
damage in bacterial or mammalian cell cultures.
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ECOLOGICAL INFORMATION
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Ecotoxicological Information
AQUATIC TOXICITY:
SULFOMETURON METHYL
48 hour NOEC - Daphnia magna: > 150 mg/L.
96 hour LC50 - Rainbow trout: > 148 mg/L.
96 hour LC50 - Bluegill sunfish: > 150 mg/L.
AVIAN TOXICITY:
SULFOMETURON METHYL
Acute Dietary LC50 - Mallard Duck: > 5000 ppm.
M0000437 DuPont Page 7
Material Safety Data Sheet
(ECOLOGICAL INFORMATION - Continued)
Acute Dietary LC50 - Bobwhite Quail: > 5620 ppm
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DISPOSAL CONSIDERATIONS
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Waste Disposal
Treatment, storage, transportation, and disposal must be in
accordance with applicable Federal, State/Provincial, and Local
regulations.
Do not contaminate water supply, food or feed by storage or
disposal.
Wastes resulting from the use of this product may be disposed of
on site or at an approved waste disposal facility.
ENVIRONMENTAL HAZARDS
Do not apply directly to water, or areas where
surface water is present, or to intertidal areas
below the mean high water mark. Do not contaminate
water when disposing of equipment washwaters.
Container Disposal
Triple rinse (or equivalent) the container. Then offer for
recycling or reconditioning, or puncture and dispose of in a
sanitary landfill, or by incineration, or if allowed by state and
local authorities, by burning. If burned, stay out of smoke.
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TRANSPORTATION INFORMATION
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Shipping Information
DOT/IMO
Proper Shipping Name : NOT REGULATED
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REGULATORY INFORMATION
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U.S. Federal Regulations
TITLE III HAZARD CLASSIFICATIONS SECTIONS 311, 312
Acute : Yes
Chronic : No
Fire : No
Reactivity : No
Pressure : No
In the United States this product is regulated by the US
Environmental Protection Agency under the Federal Insecticide,
Fungicide and Rodenticide Act. It is a violation of federal law
to use this product in a manner inconsistent with its labeling.
M0000437 DuPont Page 8
Material Safety Data Sheet
(REGULATORY INFORMATION - Continued)
EPA Reg. No. 352-601
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OTHER INFORMATION
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NFPA, NPCA-HMIS
NFPA Rating
Health :1
Flammability :1
Reactivity :0
NPCA-HMIS Rating
Health :1
Flammability :1
Reactivity :0
Personal Protection rating to be supplied by user depending on use
conditions.
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The data in this Material Safety Data Sheet relates only to the
specific material designated herein and does not relate to use in
combination with any other material or in any process.
Responsibility for MSDS: DuPont Crop Protection
Address : Wilmington, DE 19898
Telephone : 1-888-638-7668
# Indicates updated section.
This information is based upon technical information believed to be
reliable. It is subject to revision as additional knowledge and
experience is gained.
End of MSDS
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