Conforms to 93/112/EC and ISO 11014-1

SAFETY DATA SHEET
Order Customer
Number
Number

Identification of the substance/preparation and of the company/undertaking
1.
Denbufylline : 253500
Product name : Catalog #
: Manufactured by EMD Biosciences, Inc.
Supplier
10394 Pacific Center Court
Chemical formula C16H24N4O3
:
San Diego, CA 92121
(858)450-5558/(800)854-3417
FAX: (858)453-3552

1,3-Di-n-butyl-7-(2??-oxopropyl)xanthine
:
Synonym




Emergency : Call Chemtrec?
telephone number (800)424-9300 (within U.S.A.)
(703)527-3887 (outside U.S.A.)

Composition / information on ingredients
2.
: Substance
Substance/Preparation

Chemical name* CAS No. EC Number Symbol R-Phrases
1,3-Di-n-butyl-7-(2??-oxopropyl)xanthine 57076-71-8 Not available. - -


Hazards identification
3.
: Not applicable.
Physical/chemical hazards


First-aid measures
4.
First-Aid measures
: If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Inhalation
Get medical attention.
: Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an
Ingestion
unconscious person. If large quantities of this material are swallowed, call a physician immediately. Loosen
tight clothing such as a collar, tie, belt or waistband.
: In case of contact, immediately flush skin with plenty of water. Remove contaminated clothing and shoes.
Skin Contact
Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention.
: Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at
Eye Contact
least 15 minutes. Get medical attention.

: Repeated or prolonged exposure is not known to aggravate medical condition.
Aggravating conditions



5. Fire-fighting measures
: May be combustible at high temperature.
Flammability of the Product
Extinguishing Media
: SMALL FIRE: Use DRY chemical powder.
Suitable
LARGE FIRE: Use water spray, fog or foam. Do not use water jet.
Hazardous thermal (de)composition : These products are carbon oxides (CO, CO2), nitrogen oxides (NO, NO2...).
products
: Fire fighters should wear positive pressure self-contained breathing apparatus (SCBA) and full turnout gear.
Special fire-fighting procedures
: Be sure to use an approved/certified respirator or equivalent.
Protection of fire-fighters




253500
Catalog #
 Accidental release measures
6.
: Splash goggles. Full suit. Boots. Gloves. Suggested protective clothing might not be sufficient; consult a
Personal precautions
specialist BEFORE handling this product.
: Use appropriate tools to put the spilled solid in a convenient waste disposal container.
Small Spill and Leak

: Use a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading
Large Spill and Leak
water on the contaminated surface and allow to evacuate through the sanitary system

Handling and storage
7.
: Keep away from heat. Keep away from sources of ignition. Empty containers pose a fire risk, evaporate the
Handling
residue under a fume hood. Ground all equipment containing material. Do not ingest. Do not breathe dust.
Wear suitable protective clothing. If ingested, seek medical advice immediately and show the container or the
label.
: Keep container tightly closed. Keep container in a cool, well-ventilated area. Do not store above 4??C (39.2??F).
Storage
Packaging materials
: Use original container.
Recommended use


Exposure controls/personal protection
8.
: Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below
Engineering measures
recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure
to airborne contaminants below the exposure limit.
: Wash hands, forearms, and face thoroughly after handling compounds and before eating, smoking, using
Hygiene measures
lavatory, and at the end of day.
Ingredient Name Occupational Exposure Limits
Denbufylline Not available.


ersonal protective equipment
: Lab coat.
Skin and body
: Safety glasses.
Eyes
:
Protective Clothing
(Pictograms)




Physical and chemical properties
9.
: Solid.
Physical state
Color : White.
: 320.4 g/mole
Molecular Weight
: Easily soluble in methanol.
Solubility
Flash point : Not available.
: Risks of explosion of the product in presence of mechanical impact: Not available.
Explosive properties
Risks of explosion of the product in presence of static discharge: Not available.



10. Stability and reactivity
: The product is stable.
Stability
: Not available.
Conditions to avoid
: These products are carbon oxides (CO, CO2), nitrogen oxides (NO, NO2...).
Hazardous Decomposition Products


11. Toxicological information
:
RTECS # UO8413435
Local effects
Skin irritation : Not available.
: LD50: Not available.
Acute toxicity
LC50: Not available.
: Repeated or prolonged exposure is not known to aggravate medical condition.
Chronic toxicity


253500
Catalog #
 : Not available.
Other Toxic Effects on
Humans No specific information is available in our database regarding the other toxic effects of this material for
humans.
Not available.

Not available.


Carcinogenic effects : Not available.
: Not available.
Mutagenic effects
Reproduction toxicity : Not available.
: Not available.
Teratogenic effects

12. Ecological information
: Not available.
Ecotoxicity
: The products of degradation are less toxic than the product itself.
Toxicity of the Products of
Biodegradation

13. Disposal considerations
: Waste must be disposed of in accordance with federal, state and local environmental control regulations.
Methods of disposal; Waste of
residues; Contaminated packaging


14. Transport information
International transport regulations
Land - Road/Railway
: Not controlled under ADR (Europe).
ADR/RID Class
Sea
: Not controlled under IMDG.
IMDG Class
Air
: Not controlled under IATA.
IATA-DGR Class
Not applicable.
Special Provisions for
Transport

15. Regulatory information
EU Regulations
: This product is not classified according to the EU regulations.
Risk Phrases
: TSCA: No products were found.
U.S. Federal Regulations
SARA 302/304/311/312 extremely hazardous substances: No products were found.
SARA 302/304 emergency planning and notification: No products were found.
SARA 302/304/311/312 hazardous chemicals: No products were found.
SARA 311/312 MSDS distribution - chemical inventory - hazard identification: No products were found.
SARA 313 toxic chemical notification and release reporting: No products were found.
Clean Water Act (CWA) 307: No products were found.
Clean Water Act (CWA) 311: No products were found.
Clean air act (CAA) 112 accidental release prevention: No products were found.
Clean air act (CAA) 112 regulated flammable substances: No products were found.
Clean air act (CAA) 112 regulated toxic substances: No products were found.
: Not controlled under the HCS (United States).
HCS Classification
:
State Regulations


: Not controlled under WHMIS (Canada).
WHMIS (Canada)
No products were found.


16. Other information
Hazardous Material 1 National Fire
Health
Fire Hazard
1
Information System 1 Protection
Fire Hazard
(U.S.A.) Association (U.S.A.) 1 0
Health Reactivity
0
Reactivity
Specific Hazard
A
Personal Protection


Notice to Reader

253500
Catalog #
To the best of our knowledge, the information contained herein is accurate. However, neither the above named supplier nor any of its
subsidiaries assumes any liability whatsoever for the accuracy or completeness of the information contained herein
Final determination of suitability of any material is the sole responsibility of the user. All materials may present unknown hazards and should be
used with caution. Although certain hazards are described herein, we cannot guarantee that these are the only hazards that exist.
Date of issue
5/22/2003.
253500
Catalog #


DENBUFYLLINE