3,4-Dichlorostyrene

Modify Date: 2025-08-20 18:31:04

3,4-Dichlorostyrene Structure
3,4-Dichlorostyrene structure
Common Name 3,4-Dichlorostyrene
CAS Number 2039-83-0 Molecular Weight 173.039
Density 1.2±0.1 g/cm3 Boiling Point 238.9±28.0 °C at 760 mmHg
Molecular Formula C8H6Cl2 Melting Point N/A
MSDS N/A Flash Point 101.7±17.5 °C

 Names

Name 1,2-dichloro-4-ethenylbenzene
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.2±0.1 g/cm3
Boiling Point 238.9±28.0 °C at 760 mmHg
Molecular Formula C8H6Cl2
Molecular Weight 173.039
Flash Point 101.7±17.5 °C
Exact Mass 171.984650
LogP 3.70
Vapour Pressure 0.1±0.5 mmHg at 25°C
Index of Refraction 1.589
Storage condition 2-8°C

 MSDS

Name: 3 4-Dichlorostyrene stabilized 95% Material Safety Data Sheet
Synonym:
CAS: 2039-83-0
Section 1 - Chemical Product MSDS Name:3 4-Dichlorostyrene stabilized 95% Material Safety Data Sheet
Synonym:

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
2039-83-0 3,4-Dichlorostyrene 95% 218-023-1
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. May be harmful if absorbed through the skin.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
May cause respiratory tract irritation. May be harmful if inhaled.
Chronic:
Not available.

Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately.
Notes to Physician:
Treat symptomatically and supportively.

Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Combustible liquid.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.

Section 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Keep away from sources of ignition. Store in a cool, dry place.
Store in a tightly closed container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 2039-83-0: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Clear liquid
Color: colorless to yellow
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 68 - 70 deg C @1mmHg
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: 71 deg C ( 159.80 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C8H6Cl2
Molecular Weight: 173.04

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials, light.
Incompatibilities with Other Materials:
Strong oxidizing agents, bases, acids, halogens.
Hazardous Decomposition Products:
Hydrogen chloride, carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 2039-83-0 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
3,4-Dichlorostyrene - Not listed by ACGIH, IARC, or NTP.

Section 12 - ECOLOGICAL INFORMATION


Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 2039-83-0: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 2039-83-0 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 2039-83-0 is not listed on the TSCA inventory.
It is for research and development use only.


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

Hazard Codes Xi
HS Code 2903999090

 Synthetic Route

~66%

3,4-Dichlorostyrene Structure

3,4-Dichlorostyrene

CAS#:2039-83-0

Literature: Efange, Simon M. N.; Kamath, Ashok P.; Khare, Anil B.; Kung, Mei-Ping; Mach, Robert H.; Parsons, Stanley M. Journal of Medicinal Chemistry, 1997 , vol. 40, # 24 p. 3905 - 3914

~18%

3,4-Dichlorostyrene Structure

3,4-Dichlorostyrene

CAS#:2039-83-0

Literature: Spencer, Alwyn Journal of Organometallic Chemistry, 1983 , vol. 247, # 1 p. 117 - 122

~%

3,4-Dichlorostyrene Structure

3,4-Dichlorostyrene

CAS#:2039-83-0

Literature: Walling; Wolfstirn Journal of the American Chemical Society, 1947 , vol. 69, p. 852

~%

3,4-Dichlorostyrene Structure

3,4-Dichlorostyrene

CAS#:2039-83-0

Literature: Walling; Wolfstirn Journal of the American Chemical Society, 1947 , vol. 69, p. 852 Full Text View citing articles Show Details Sprague Electric Co. Patent: US2406319 , 1943 ;

~%

3,4-Dichlorostyrene Structure

3,4-Dichlorostyrene

CAS#:2039-83-0

Literature: Efange, Simon M. N.; Kamath, Ashok P.; Khare, Anil B.; Kung, Mei-Ping; Mach, Robert H.; Parsons, Stanley M. Journal of Medicinal Chemistry, 1997 , vol. 40, # 24 p. 3905 - 3914

~%

3,4-Dichlorostyrene Structure

3,4-Dichlorostyrene

CAS#:2039-83-0

Literature: Shimizu, Nobujiro; Watanabe, Shin-ichiro; Tsuno, Yuho Bulletin of the Chemical Society of Japan, 1991 , vol. 64, # 7 p. 2249 - 2254

~%

3,4-Dichlorostyrene Structure

3,4-Dichlorostyrene

CAS#:2039-83-0

Literature: Shimizu, Nobujiro; Watanabe, Shin-ichiro; Tsuno, Yuho Bulletin of the Chemical Society of Japan, 1991 , vol. 64, # 7 p. 2249 - 2254

~%

3,4-Dichlorostyrene Structure

3,4-Dichlorostyrene

CAS#:2039-83-0

Literature: Kedia, Sandeep B.; Mitchell, Mark B. Organic Process Research and Development, 2009 , vol. 13, # 3 p. 420 - 428

~%

3,4-Dichlorostyrene Structure

3,4-Dichlorostyrene

CAS#:2039-83-0

Literature: Shimizu, Nobujiro; Watanabe, Shin-ichiro; Tsuno, Yuho Bulletin of the Chemical Society of Japan, 1991 , vol. 64, # 7 p. 2249 - 2254

 Customs

HS Code 2903999090
Summary 2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

 Synonyms

1,2-Dichloro-4-vinylbenzene
Benzene, 1,2-dichloro-4-ethenyl-
3,4-dichlorophenylethylene
1,2-dichloro-4-ethenyl-benzene
3,4-Dichlor-styrol
Benzene,1,2-dichloro-4-ethenyl
EINECS 218-023-1
3,4-dichlorostyrene
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