Dibenzothiophene

Modify Date: 2024-01-02 10:49:25

Dibenzothiophene Structure
Dibenzothiophene structure
Common Name Dibenzothiophene
CAS Number 132-65-0 Molecular Weight 184.257
Density 1.3±0.1 g/cm3 Boiling Point 332-333 ºC
Molecular Formula C12H8S Melting Point 97-100 °C(lit.)
MSDS Chinese USA Flash Point 170 ºC
Symbol GHS07 GHS09
GHS07, GHS09
Signal Word Warning

 Use of Dibenzothiophene


Dibenzothiophene is an intermediate of organic synthesis, consisting of two benzene rings fused to a central thiophene ring.

 Names

Name dibenzothiophene
Synonym More Synonyms

 Dibenzothiophene Biological Activity

Description Dibenzothiophene is an intermediate of organic synthesis, consisting of two benzene rings fused to a central thiophene ring.
Related Catalog

 Chemical & Physical Properties

Density 1.3±0.1 g/cm3
Boiling Point 332-333 ºC
Melting Point 97-100 °C(lit.)
Molecular Formula C12H8S
Molecular Weight 184.257
Flash Point 170 ºC
Exact Mass 184.034668
PSA 28.24000
LogP 4.38
Vapour Pressure 0.0±0.7 mmHg at 25°C
Index of Refraction 1.756
Water Solubility SOLUBLE

 MSDS

Name: Dibenzothiophene 99% Material Safety Data Sheet
Synonym: 2,2'-Biphenylylene sulfide; 9-Thiafluorene; Dibenzo(b,d)thiophene; Diphenylene sulfide
CAS: 132-65-0
Section 1 - Chemical Product MSDS Name:Dibenzothiophene 99% Material Safety Data Sheet
Synonym:2,2'-Biphenylylene sulfide; 9-Thiafluorene; Dibenzo(b,d)thiophene; Diphenylene sulfide

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
132-65-0 Dibenzothiophene 99 205-072-9
Hazard Symbols: XN
Risk Phrases: 22

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Harmful if swallowed.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
Harmful if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
Inhalation:
May cause respiratory tract irritation.
Chronic:
Chronic ingestion may cause liver damage.

Section 4 - FIRST AID MEASURES
Eyes: In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Get medical aid.
Skin:
In case of contact, flush skin with plenty of water. Remove contaminated clothing and shoes. Get medical aid if irritation develops and persists. Wash clothing before reuse.
Ingestion:
If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:

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. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion.
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:
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation.

Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid breathing dust.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 132-65-0: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
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: Crystalline powder
Color: yellow to green
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 332 - 333 deg C @ 760 mm Hg
Freezing/Melting Point: 97 - 100 deg C
Autoignition Temperature: > 450 deg C (> 842.00 deg F)
Flash Point: 170 deg C ( 338.00 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: soluble
Specific Gravity/Density:
Molecular Formula: C12H8S
Molecular Weight: 184.26

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Dust generation.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, oxides of sulfur, carbon dioxide.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 132-65-0: HQ3490550 LD50/LC50:
CAS# 132-65-0: Oral, mouse: LD50 = 470 mg/kg.
Carcinogenicity:
Dibenzothiophene - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

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
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing group:

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 22 Harmful if swallowed.
Safety Phrases:
WGK (Water Danger/Protection)
CAS# 132-65-0: No information available.
Canada
CAS# 132-65-0 is listed on Canada's DSL List.
CAS# 132-65-0 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 132-65-0 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
HQ3490550
CHEMICAL NAME :
Dibenzothiophene
CAS REGISTRY NUMBER :
132-65-0
LAST UPDATED :
199710
DATA ITEMS CITED :
7
MOLECULAR FORMULA :
C12-H8-S

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
470 mg/kg
TOXIC EFFECTS :
Behavioral - general anesthetic Behavioral - coma
REFERENCE :
FAATDF Fundamental and Applied Toxicology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1981- Volume(issue)/page/year: 12,787,1989
TYPE OF TEST :
LD - Lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CBCCT* "Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. (National Academy of Science Library, 2101 Constitution Ave., NW, Washington, DC 20418) Volume(issue)/page/year: 4,378,1952 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
7480 mg/kg/24W-I
TOXIC EFFECTS :
Liver - fatty liver degeneration Liver - changes in liver weight Endocrine - changes in spleen weight
REFERENCE :
FOREAE Food Research. (Champaign, IL) V.1-25, 1936-60. For publisher information, see JFDSAZ. Volume(issue)/page/year: 7,161,1942 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4832 No. of Facilities: 7 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 28 (estimated)

 Safety Information

Symbol GHS07 GHS09
GHS07, GHS09
Signal Word Warning
Hazard Statements H302-H410
Precautionary Statements P273-P501
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Faceshields;Gloves
Hazard Codes Xn:Harmful;
Risk Phrases R22
Safety Phrases S36
RIDADR 2811
WGK Germany 3
RTECS HQ3490550
Packaging Group III
Hazard Class 9
HS Code 29349990

 Precursor & DownStream

Precursor  0

DownStream  2

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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 Synonyms

9-Thiafluorene
Dibenzo(b,d)thiophene
MFCD00004969
Diphenylene Sulfide
a-thiafluorene
2,2'-Biphenylylene sulfide
Diphenylenesulfide
[1,1'-Biphenyl]-2,2'-diyl sulfide
EINECS 205-072-9
Dibenzothiophene
DBT,Diphenylene sulfide
dibenzo[b,d]thiophene
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