|  The MSDS format adheres to the standards and regulatory requirementsof the United States and may not meet regulatory requirements
 in other countries.
 
 DuPont                         Page   1
 Material Safety Data Sheet
 
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 AGENT 1
 E1001709                  Revised 31-MAY-2007
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 CHEMICAL PRODUCT/COMPANY IDENTIFICATION
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 Material Identification
 
 Grade                    : RESEARCH & DEVELOPMENT USE ONLY
 
 Tradenames and Synonyms
 
 A 10846; DELTAN; DEMESO; DEMASORB; DEMAVET; DEMSODROX;
 DIMETYL SULFOXIDE; DIMETHYL SULPHOXIDE; DIMEXIDE;
 DIPIRARTRIL-TROPICO; DMS-70; DMS-90; DMSO; DOLICUR; DOMOSO;
 DROMISOL; DURASORB; GAMASOL 90; HYADUR; INFILTRINA; M 176;
 METHANE, SULFINYLBIS-; METHYLSULFINYLMETHANE; NSC-763;
 RIMSO-50; SOMIPRONT; SQ 9453; SULFINYLBI(METHANE); SYNTEXAN;
 TOPSYM
 
 Company Identification
 
 MANUFACTURER/DISTRIBUTOR
 DuPont/Qualicon Inc.
 Experimental Station
 Building 400
 Rt.141 and Henry Clay Road
 Wilmington, DE 19880
 
 PHONE NUMBERS
 Product Information   : 1-(800)441-7515
 Transport Emergency   : CHEMTREC: 1-800-424-9300
 Medical Emergency     : 1-(800)441-3637
 
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 COMPOSITION/INFORMATION ON INGREDIENTS
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 Components
 
 Material                                   CAS Number     %
 Dimethylsulfoxide                             67-68-5   100
 
 Components (Remarks)
 
 This material is a RESEARCH AND DEVELOPMENT chemical and has not
 been tested to determine the physical, chemical, or toxicological
 properties. Therefore, this chemical should be treated as a
 hazardous material and this Material Safety Data Sheet is provided
 to assist the laboratory personnel in handling the substance
 safely.
 E1001709                        DuPont                          Page   2
 Material Safety Data Sheet
 
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 HAZARDS IDENTIFICATION
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 Emergency Overview
 
 Combustible. Readily absorbed through skin.     Target
 organ(s): Eyes. Skin.
 
 Potential Health Effects
 
 
 Unknown. This sample is for RESEARCH AND DEVELOPMENT purposes
 only. As the chemical鈥檚 physical and toxicological properties
 have not been fully tested, this material should be handled AS A
 HAZARDOUS CHEMICAL and only by technically qualified persons using
 good industrial hygiene practices to prevent ANY exposure.
 
 Skin contact may initially include skin irritation with
 discomfort or rash. Skin permeation can occur in
 amounts capable of producing the effects of systemic
 toxicity. Readily absorbed through the skin.
 
 Eye contact may cause eye irritation with discomfort,
 tearing, or blurring of vision.
 
 Inhalation: may be harmful if inhaled. Materail may be
 irritating to mucous membrane and upper respiratory tract.
 
 Ingestion: may be harmful if swallowed.
 
 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
 
 INHALATION
 
 If inhaled, remove to fresh air. If not breathing, give
 artificial respiration. If breathing is difficult, give oxygen.
 Call a physician.
 
 SKIN CONTACT
 
 In case of contact, immediately flush skin with plenty of water
 for at least 15 minutes while removing contaminated clothing and
 shoes. Call a physician. Wash contaminated clothing before reuse.
 
 EYE CONTACT
 E1001709                        DuPont                        Page     3
 Material Safety Data Sheet
 
 (FIRST AID MEASURES - Continued)
 
 In case of contact, immediately flush eyes with plenty of water
 for at least 15 minutes. Call a physician.
 
 INGESTION
 
 Call a physician immediately.
 
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 FIRE FIGHTING MEASURES
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 Flammable Properties
 
 Flash Point               : 87 C (189 F)
 Method                    : Closed Cup.
 Autoignition              : 301 C (574 F)
 
 Explosion Limits             : 3.5% Lower
 : 42% Upper
 
 The fire and explosion potential has not been investigated.
 Therefore, handle the material as if it were a fire and explosion
 hazard.
 
 Extinguishing Media
 
 Alcohol Resistant Foam, Dry Chemical, CO2.
 
 For large fires, apply water from as far as possible. Use
 very large quantities (flooding) of water applied as a mist
 or spray; solid streams of water may be ineffective. Cool
 all affected containers with flooding quantities of water.
 
 Fire Fighting Instructions
 
 Keep personnel removed and upwind of fire. Wear self-contained
 breathing apparatus. Wear full protective equipment.
 
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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.
 
 Evacuate personnel, thoroughly ventilate area, use self-contained
 breathing apparatus.
 
 Initial Containment
 
 Prevent material from entering sewers, waterways, or low areas.
 E1001709                        DuPont                          Page   4
 Material Safety Data Sheet
 
 (ACCIDENTAL RELEASE MEASURES - Continued)
 
 Spill Clean Up
 
 Cover with dry-lime, sand, or soda ash. Place in covered
 containers using non-sparking tools and transport outdoors.
 Ventilate area and wash spill site after material pickup is
 complete.
 
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 HANDLING AND STORAGE
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 Handling (Personnel)
 
 Do not breathe vapor or mist. Do not get in eyes, on skin or
 clothing. Wash thoroughly after handling. Wash clothing after
 use. Do not store or consume food, drink or tobacco in areas
 where they may become contaminated with this material.
 
 Avoid contact with DMSO solutions containing toxic materials
 or materials with unknown toxicological properties. DMSO is
 readily absorbed through the skin and may carry such
 materials into the body. Avoid prolonged or repeated
 exposure.
 
 Storage
 
 Store in a well ventilated place. Keep container tightly closed.
 Do not store or consume food, drink or tobacco in areas where they
 may become contaminated with this material. Store in a clean, dry
 place. Keep away from heat, sparks and flames.
 
 SPECIAL REQUIREMENTS
 Store under inert gas.   Hygroscopic
 
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 EXPOSURE CONTROLS/PERSONAL PROTECTION
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 Engineering Controls
 
 Use only with adequate ventilation.    Keep container tightly closed.
 
 Personal Protective Equipment
 
 EYE/FACE PROTECTION: Wear safety glasses with side shields. Wear
 full face protection when handling in a non-enclosed system or
 when the possibility exists for eye and face contact.
 
 RESPIRATORS: If this material is not used in a chemical fume
 hood, wear a NIOSH-approved air purifying respirator or positive
 pressure air-supplied respirator where there is a potential for
 inhalation exposure.
 
 PROTECTIVE CLOTHING: Wear impervious clothing such as gloves,
 whole bodysuit, apron, or boots, as appropriate. Consult the site
 safety professional for additional guidance, as needed.
 E1001709                          DuPont                         Page   5
 Material Safety Data Sheet
 
 (EXPOSURE CONTROLS/PERSONAL PROTECTION - Continued)
 
 Exposure Guidelines
 
 Applicable Exposure Limits
 Dimethylsulfoxide
 PEL   (OSHA)             : None Established
 TLV   (ACGIH)            : None Established
 AEL * (DuPont)           : 10 ppm, 8 Hr. TWA, Skin
 WEEL (AIHA)              : 250 ppm, 8 Hr. TWA
 
 * 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
 
 Form                      :   Liquid.
 Color                     :   Colorless.
 Boiling Point             :   189 C (372 F)
 Melting Point             :   18.4 C (65.1 F)
 Specific Gravity          :   1.1 g/cm3
 Vapor Density             :   0.42 mm Hg 20 C (68 F)
 Vapor Density             :   2.7 g/L
 
 Viscosity           :   0.002 Pas 20 C
 Solubility in H2O   :   Miscible
 Other Solvents      :   Alcohols, Ethyl Ethers
 Partition Coefficient   Log Kow: -2.030
 
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 STABILITY AND REACTIVITY
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 Decomposition
 
 Decomposition temperature: >190 C (>374 F)
 
 Other Hazards
 
 The hazardous reactivity of this material is unknown. DO
 NOT mix with other materials unless specifically instructed
 to do so under the guidance of a trained chemist. DO NOT
 expose to heat, flame, or extreme temperatures.
 E1001709                        DuPont                         Page   6
 Material Safety Data Sheet
 
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 TOXICOLOGICAL INFORMATION
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 Animal Data
 
 Inhalation LC50:          40,250 ppm in rats
 Skin absorption LD50:   > 5000 mg/kg in rabbits
 Oral LD50:                3300 mg/kg in rats
 
 The compound is a mild skin irritant, a slight eye irritant,
 but is not a skin sensitizer in animals.
 
 Inhalation: Toxic effects described in animals from single
 inhalation exposures include slight eye and nose irritation,
 pulmonary edema, and alteration of serum clinical chemical
 parameters. Repeated inhalation exposures to higher
 concentrations demonstrated no adverse changes.
 
 Skin: Toxicity described in animals from single dermal
 exposure include an alteration of a serum enzyme, while
 repeated exposures resulted in other changes in
 clinical chemical parameters, dry scaly skin, and ocular
 changes. Longer term studies also resulted in ocular
 changes.
 
 Ingestion: Single exposure by oral administration resulted
 in increased serum blood sugar. Repeated and long term
 oral administration caused liver changes and decreased body
 and organ weights; ocular effects were observed in rodents
 but no ocular effects were observed in studies on monkeys
 and humans. Long term oral administration also caused some
 kidney changes.
 
 Tests in animals demonstrate no carcinogenic activity.
 Tests in some animals indicate that the compound may
 have developmental toxicity at very high doses.
 
 In female mice administered up to 10,000 mg/kg/day of
 DMSO while being paired with untreated male mice, only
 about half became pregnant versus 100% pregnancy in controls
 The difference in pregnancy rate might be explained by the
 "garlic odor" associated with the DMSO-treated mice. The
 authors speculate that the odor may interfere in the sexual
 attractiveness of the DMSO-treated female mice. Limited
 information available indicates it does not affect fertility
 
 In a few cell cultures systems, the compound has produced
 some chromosomal abnormalities. Currently available
 animal data indicate that this compound does not cause
 permanent genetic damage in reproductive cells of mammals
 (does not cause heritable genetic damage).
 E1001709                        DuPont                        Page   7
 Material Safety Data Sheet
 
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 ECOLOGICAL INFORMATION
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 Ecotoxicological Information
 
 Aquatic Toxicity
 96 hour LC50 - Fathead minnows: 34,000 mg/L
 96 hour LC50 - Rainbow trout: 35,000 mg/L
 EC50 - Daphnia pulex: 27,500 mg/L
 96 hour EC50 - Algae: > 400,000 mg/L
 
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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.
 
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 TRANSPORTATION INFORMATION
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 Shipping Information
 
 DOT
 Proper Shipping Name    :   Combustible Liquid, n.o.s.
 Hazard Class            :   COMBUSTIBLE LIQUID
 I.D. No. (UN/NA)        :   NA1993
 Packing Group           :   III
 
 IATA
 Non-hazardous for Air Transport: Non-hazardous for Air
 Transport
 
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 OTHER INFORMATION
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 NFPA, NPCA-HMIS
 
 NFPA Rating
 Health                  :0
 Flammability            :2
 Reactivity              :1
 
 NPCA-HMIS Rating
 Health                  :0
 Flammability            :2
 Reactivity              :1
 E1001709                        DuPont                         Page    8
 Material Safety Data Sheet
 
 (Continued)
 
 Additional Information
 
 This material is for RESEARCH AND DEVELOPMENT USE ONLY. It is
 being supplied under the exemption for research and development
 under the Toxic Substances Control Act (TSCA) and/or the Federal
 Insecticide, Fungicide, and Rodenticide Act (FIFRA). Commercial
 use of this material is a violation of Federal law.
 
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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 : Product Safety Coordinator
 Address                 : Experimental Station, Bldg. 400
 Rt. 141 and Henry Clay Road
 Wilmington, DE 19880
 Telephone               : 302-695-5300
 
 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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