mole.gif (1741 bytes)Material Safety Data Sheet of           Benomyl Technical
COMPOSITION/INFORMATION ON INGREDIENTS

Product Name                 :  Benomyl

CAS Number                   :  Fungicide

Use Catalogue                 :  C14H18N4O3
Chemical Name                :  methyl-1-[(butylamino)carbonyl]-H-benzimidazol-2-ylcarbamate

CAS Number                    :  17804-35-2

Chemical Formula             :  C14H18N4O3

Molecular Weight              :  290.3

Structural formula  :

------------------------------------------------------------------------------------

HAZARDS IDENTIFICATION

Route of Entry: Skin absorption, skin contact, eye contact, inhalation, ingestion
Routes of Exposures: Acute oral LD50: 5000mg/kg in rats
                                 Inhalation 4-hour LC50:2.0mg/L (rats)
                                 Dermal contact LD50:100oomg/kg (rat)
Eye Irritation   : Temporary irritating.
Skin Irritation  : Neglligible irritating.
Sensitization   : No skin sensitization to guinea pig.

------------------------------------------------------------------------------------

FIRST AID MEASURES

Ingestion :If the victim is convulsing or unconscious, administer a glass of water; ensure that the victim's airway is open and call a physical if symptoms developed.
Eye Contract: Immediately rinse eyes with a large amount of running water for at least 15 minutes. Hold eyelids apart to rinse the entire surface of the eyes and the lids.
Skin Contract:Remove all contaminated clothing. Wash with plenty of soap and water, including hair and under fingernails. Call a hospitalor poison control center if symptoms develop.
Inhalation: Immediately leave the contaminated area to fresh air. If not breathing, give artifical respiration. If breathing is difficult, give oxygen. Call a physician and prepared to transport the victim to a hospital if symptoms developed.
Note to Physician: If ingested too much, give gastric lavage with care to prevent aspiration. Treat symptoms.

------------------------------------------------------------------------------------

FIRE FIGHTING MEASURES

Flash Point: Not applicable
Extinguishing Media :Water spray, CO2, dry chemical and foam.
Special Fighting Procedures : Keep out of smoke. Cool exposed containers with water spray. Fight fire from upwind position. Use self-contained breathing equipment. Contain runoff by diking to prevent entry into sewers or waterways. Equipment or materials involved in pesticide fires may become contaminated.

------------------------------------------------------------------------------------

ACCIDENTAL RELEASE MEASURES

Isolate area and keep unauthorized people away. Do not walk through spilled material. Avoid breathing dust and skin contact. remove sources of ignition if combustible or flammable vapors may be present and ventilate area. Wear proper protective equipment. Dike contaminated area with absorbent granules, soil, sand, etc.
If spill large, material should be recovered.
Small spills can be absorbed with absorbent granules, spill control pads, or any absorbent material. Carefully sweep up absorbed spilled material. Place in covered container for reuse or disposal. Scrub contaminated area with detergent and bleach solution and/or detergent and lye in water solution. Repeat. Rinse with water. Use dry absorbent material such as clay granules to absorb and collect wash solution for proper disposal. Contaminated soil may have to be removed and disposed. Do not allow material to enter streams, sewers, or other waterways or contact vegetation.

------------------------------------------------------------------------------------

HANDLING AND STORAGE

Handling (Personnel): Avoid breathing vapors or mist. Avoid breathing dust. Avoid contact with eyes, skin, or clothing. Washing thoroughly after handling this product. Do not store or consume food, drink or tobacco in areas where they may become contaminated with this material.
Users Should: Wash hands before eating, drinking, chewing gum, using tobacco or using the toilet. Remove clothing immediately if pesticide gets inside. Then wash thoroughly and put on clean clothing. Remove personal protective equipment immediately after handling this product. Wash the outside of gloves before removing. As soon as possible, wash thoroughly and change into clean clothing.
Handling: Keep away from heat, sparks and flames.
Storage: Store in a cool and dry place out of reach of children. Keep container tightly closed. Provide storage with automatic extinguishing system. Do not store or consume food, drink or tobacco in areas where they may become contaminated with this material. It also should be avoid source of fire, shining, directly and high heated. Store in temperature below 50°C.

------------------------------------------------------------------------------------

EXPOSURE CONTROLS/PERSONAL PROTECTION

Users or anyone who has to handling or contacting with this product should firstly read the personal protection. While handling, using and fighting fire of this product, cleaning equipments, mixing or loading, following personal protective equipment should be used:
Personal Protective Equipment:
Eye and face protections: Wear chemical goggles and mask
Skin protections: Long-sleeved shirt and long pants waterproof gloves chemical-resistant footwear. Wash contaminated skin promptly. Launder contaminated clothing and clean protective equipment before reuse. Wash hand thoroughly after handling.

------------------------------------------------------------------------------------

PHYSICAL AND CHEMICAL PROPERTIES

Physical State                                Powder Solid.
Content %                                      95%min.
Color                                              White
Odor                                               Odorless
Melting Point                                   140 (decompose)
Boiling Point                                    Not applicable
Vapor Pressure                                5.0 X 10-3mPa
Flammability                                    Not flammable
Explosiveness                                  Not explosive
Density                                            0.38(Bulk density)
Solubility                                          In water about 4mg/kg(at25,PH3-10).
                                                       Very Soluble in water(PH1)

------------------------------------------------------------------------------------

STABILITY AND REACTIVITY

Stability: Stable for at least 2 years under normal condition.
Hazardous Polymerization: Will not occur.
Incompatibilities: Decomposed in acidic media and alkaline solution
Instability Conditions: Easily decomposed into carbendazim in water or plant media.

------------------------------------------------------------------------------------

Toxicological Information

Chronic Toxicity:When rats were fed diets containing about 150 mg/kg/day for 2 years, no toxic effects were observed. Dogs fed benomyl in their diets for 3 months had no major toxic effects, but did sho evidence of altered liver function at the highest does (150 mg/kg). The damage progressed to more severly impaired liver function and liver cirrhosis after 2 years.
Reproductive Effects:A three-generation study on rats showed no reporductive or lactational differences at a dose of 150 mg/kg/day administered in the diet. In another study in rats, the testes were the most affected sites at relatively low doses of about 15 mg/kg/day. Male rats had decreased sperm counts, decreased testicular weight, and lower fertility rates. The animals recovered from these effects 70 days after feeding with the pesticide had stopped. Reproductive effects in humans are unlikely at expected exposure levels.
Teratogenic Effects: Very high doses of benomy can cause birth defects in test animals. Rats fed 150 mg/kg/day in the diet for three generations showed no birth defects. No teratogenicity was observed in another study of rats given 300mg/kg/day on days 6 to 15 of gestation. At higher doses, some birth defects were noted, but they were accomapnied by toxicity to the fetus. In another rat study where mothers were fed 1000 mg/kg/day for months, the offspring showed a decrease in viability and fertility. These data suggest that benomyl is not likely to cause teratogenic effects under normal circumstances.
Mutagenic Effects: No conclusions about the mutagenicity of benomyl can be drawn.
Carcinogenic Effects: It is not possible to determine the carcinogenicity of benomyl.
Organ Toxicity: Target organs idenitified in animal studies included the liver and testes.

------------------------------------------------------------------------------------

ECOLOGICAL INFORMATION

Benomyl is moderately toxic to bird.
Benomyl is highly to very highly toxic to fish.
Benomyl is relatively nontoxic to bees.

------------------------------------------------------------------------------------

DISPOSAL CONSIDERATIONS

Dispose of in a manner consistent with federal, state, and local regulations. Do not reuse container without the permission of company.

------------------------------------------------------------------------------------

TRANSPORT INFORMATION

Proper Shipping Name : Environmentally hazardous substance, Solid, N.O.S.(Benomyl 95% Tech).
Hazard Class : 9
UN No : UN3077
Packing Group : III

------------------------------------------------------------------------------------

OTHER INFORMATION

MSDS Created Date : July 25,2001
REVISION DATE : Apr 02,2002
Use : Benomyl is a systemic, benzimidazole fungicide that is selectively toxic to microorganisms and to invertebrates, especially earthworms. It is used against a wide range of fungal diseases of field crops, fruits, nuts ornamentals, mushrooms, and turf. Formulations include wettable powder, dry flowable powder, and dispersible granules.

------------------------------------------------------------------------------------

The information above is believed to be accurate and represents the best information currently available to us. However, we make no warrnaty of merchant ability or any other warranty, express or implied, with respect to such information, and company assumes no legal responsibility for use or reliance upon these data. The date on this sheet relates only to the specific material designated herein, and users whould make their own investigations to determine the suitability of the information for their particular purposes. In no way shall company be liable for ant claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages.