CAS Number: 3559-74-8
Product Catalog

14-7950

Silicon › Trimethylsilylcyclopentadiene, 97% (mixture of isomers)

Stability: moisture sensitive, store cold

Safety: Hazardous

Physical Characteristics: boiling point 138-140°C, flash point 85°F, density 0.833

Please log in or choose your country below to view prices.

SECTION 1: Product Identification
Chemical Name:	Trimethylsilyl cyclopentadiene, 97% (mixture of isomers)
Product Number:	14-7950
CAS Registry Number:	3559-74-8
Formula:	(C5H5)Si(CH3)3
EINECS Number:	none
Chemical Family:	organosilicon compounds
Synonym:	Cyclopentadienyltrimethylsilane, 5-(Trimethylsilyl)- -1,3-cyclopentadiene

SECTION 2: Composition and Information on Ingredients
Ingredient	CAS Number	Percent	ACGIH (TWA)	OSHA (PEL)
Title Compound	3559-74-8	100	no data	no data

SECTION 3: Hazards Identification
Emergency Overview:	Flammable liquid and vapor. Inhalation may cause dizziness and headache. Irritating to eyes, skin and mucous membranes.
Primary Routes of Exposure:	Ingestion and inhalation
Eye Contact:	Causes irritation of the eyes.
Skin Contact:	Causes irritation of the skin.
Inhalation:	Irritating to the nose, mucous membranes and respiratory tract. Can cause dizziness, headaches, nausea and impaired coordination.
Ingestion:	Irritating to mouth throat and stomach. May cause dizziness, nausea, vomiting, pain and stomach upset.
Acute Health Effects:	Irritation to skin, eyes and mucous membranes. May give cyclopentadiene with moisture causing sleepiness, dizziness, weakness, nausea, vomiting.
Chronic Health Effects:	No information available on long term chromic effects. Long term exposure to cyclopentadiene and its dimer may effect lung, liver and kidney function.
NTP:	No
IARC:	No
OSHA:	No

SECTION 4: First Aid Measures
Eye Exposure:	Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim will need assistance in keeping their eye lids open. Get immediate medical attention.
Skin Exposure:	Wash the affected area immediately with water. Remove contaminated clothing if necessary. Seek medical assistance if irritation persists.
Inhalation:	Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Ingestion:	Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting if directed by medical personnel.

SECTION 5: Fire Fighting Measures
Flash Point:	85°F
Autoignition Temperature:	no data
Explosion Limits:	no data
Extinguishing Medium:	dry chemical, carbon dioxide, water spray or foam.
Special Fire Fighting Procedures:	Fire fighters should be equipped with a NIOSH-approved positive pressure self-contained breathing and full protective clothing.
Hazardous Combustion and Decomposion Products:	carbon dioxide, carbon monoxide, soot, silicon oxide particulate.
Unusual Fire or Explosion Hazards:	Flammable liquid. If evaporated in a confined space may form explosive mixtures with air.

SECTION 6: Accidental Release Measures
Spill and Leak Procedures:	Spills can be absorbed into vermiculite or other suitable adsorbent. Larger spills must be contained in order to avoid contamination of the soil, sewers systems or bodies of water. Eliminate all potential ignition sources.

SECTION 7: Handling and Storage
Handling and Storage:	Store in a cool, dry, well-ventilated area away from heat and direct sunlight. Keep containers tightly sealed. Do not use heat, sparks, open flames, or torches on empty containers. Transfer material under moisture free conditions.

SECTION 8: Exposure Controls and Personal Protection
Eye Protection:	Always wear approved safety glasses when handling a chemical substance in the laboratory.
Skin Protection:	Wear protective clothing and gloves. Consult with glove manufacturer to determine the proper type of glove.
Ventilation:	Work with this product in a well-ventilated area, preferably a fume hood.
Respirator:	If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134
Additional Protection:	No additional protection required.

SECTION 9: Physical and Chemical Properties
Color and Form:	colorless liq.
Molecular Weight:	138.29
Melting Point:	no data
Boiling Point:	138-140°C
Vapor Pressure:	no data
Specific Gravity:	0.833
Odor:	organic
Solubility in Water:	insoluble

SECTION 10: Stability and Reactivity
Stability:	moisture sensitive, (store cold)
Hazardous Polymerization:	no hazardous polymerization
Conditions to Avoid:	contact with moisture or ignition sources.
Incompatibility:	oxidizing agents, halogens, water and other protic materials
Decomposition Products:	carbon dioxide, carbon monoxide, cyclopentadiene, silicon oxide and organic fumes.

SECTION 11: Toxicological Information
RTECS Data:	No information available in the RTECS files.
Carcinogenic Effects:	No data available
Mutagenic Effects:	No data available
Tetratogenic Effects:	No data available

SECTION 12: Ecological Information
Ecological Information:	No information available

SECTION 13: Disposal Considerations
Disposal:	Dispose of according to local, state and federal regulations.

SECTION 14: Transportation
Shipping Name (CFR):	Flammable liquids, N.O.S.
Hazard Class (CFR):	3
Additional Hazard Class (CFR):	NA
Packaging Group (CFR):	III
UN ID Number (CFR):	UN# 1993
Shipping Name (IATA):	Flammable liquid, N.O.S.
Hazard Class (IATA):	3
Additional Hazard Class (IATA):	NA
Packaging Group (IATA):	III
UN ID Number (IATA):	UN# 1993

SECTION 15: Regulatory Information
TSCA:	Not listed in the TSCA inventory.
SARA (Title 313):	Title compound not listed.
Second Ingredient:	none
Third Ingredient:	none

SECTION 16: Other Information
Disclaimer:	The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information.
Preparation Date:	6/11/2001
Revision Date:	12/23/2011