271-89-6 structure, C8H6O
Benzofuran
CAS No.: 271-89-6 Formula: C8H6O Molecular Weight: 118.13300
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Benzofuran

CAS No.:

271-89-6

Formula:

C8H6O

Molecular Weight: 118.13300
Suppliers: All (45) China Suppliers (45) Price Available (12) Contractor (5)

Description

Benzofuran is the heterocyclic compound consisting of fused benzene and furan rings. This colourless liquid is a component of coal tar. Benzofuran is the "parent" of many related compounds with more complex structures. For example, psoralen is a benzofuran derivative that occurs in several plants.

Basic Info

Chemical Name

Benzofuran

Synonyms

2,3-benzofuran; Benzofuran; Coumarone; benzofurfuran; 1-oxidene; Yellow coumarone; 1-Benzofuran; coumaron; Benzo[b]furan; Expand

CAS No.

271-89-6

Molecular Formula

C8H6O

Molecular Weight

118.13300

PSA

13.14000

LogP

2.43280

Numbering system

MDL number MFCD00005847
EINECS number 205-982-6

Properties

Appearance & Physical State

clear to slightly greenish liquid

Density

1.07

Boiling Point

173-175ºC

Melting Point

-18ºC

Flash Point

50ºC

Refractive Index

1.5655-1.5675

Water Solubility

insoluble

Storage Condition

2-8ºC

Vapor Pressure

1.65mmHg at 25°C

Safety Info

RTECS

DF6423800

Hazard Class

3

Safety Statements

S16-S36/37

HS Code

29329900

WGK Germany

3

Packing Group

III

RIDADR

UN 1993

Risk Statements

R10; R40

Hazard Codes

Xn

SDS 1.0

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SDS 1.0

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SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-benzofuran

1.2 Other means of identification

Product number -
Other names 2,1,3-benzothiadiazol-4-sulfonyl chloride

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Nitrosamines/ethers/alcohols
Uses advised against no data available

1.4 Supplier's details

Company MOLBASE (Shanghai) Biotechnology Co., Ltd.
Address Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road,
Xuhui District, Shanghai, China
Telephone +86(21)64956998
Fax +86(21)54365166

1.5 Emergency phone number

Emergency phone number +86-400-6021-666
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Flammable liquids, Category 3

Carcinogenicity, Category 2

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Warning

Hazard statement(s)

H226 Flammable liquid and vapour

H351 Suspected of causing cancer

Precautionary statement(s)
Prevention

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

P233 Keep container tightly closed.

P240 Ground and bond container and receiving equipment.

P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment.

P242 Use non-sparking tools.

P243 Take action to prevent static discharges.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P201 Obtain special instructions before use.

P202 Do not handle until all safety precautions have been read and understood.

Response

P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water [or shower].

P370+P378 In case of fire: Use ... to extinguish.

P308+P313 IF exposed or concerned: Get medical advice/ attention.

Storage

P403+P235 Store in a well-ventilated place. Keep cool.

P405 Store locked up.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
1-benzofuran 1-benzofuran 271-89-6 none 100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

In case of skin contact

Wash off with soap and plenty of water. Consult a physician.

In case of eye contact

Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.

If swallowed

Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

4.2 Most important symptoms/effects, acute and delayed

ACUTE/CHRONIC HAZARDS: When heated to decomposition this compound emits acrid and irritating smoke and fumes.

4.3 Indication of immediate medical attention and special treatment needed, if necessary

/SRP:/ Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if needed. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... . Cover skin burns with dry sterile dressings after decontamination ... . /Poison A and B/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

/Use/ foam, dry powder, carbon dioxide. ...Keep drums, etc., cool by spraying with water.

5.2 Specific hazards arising from the chemical

This chemical is combustible.

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Remove all ignition sources. Do NOT wash away into sewer. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in covered containers as far as possible.

6.3 Methods and materials for containment and cleaning up

PRECAUTIONS FOR "CARCINOGENS": A high-efficiency particulate arrestor (HEPA) or charcoal filters can be used to minimize amt of carcinogen in exhausted air ventilated safety cabinets, lab hoods, glove boxes or animal rooms ... Filter housing that is designed so that used filters can be transferred into plastic bag without contaminating maintenance staff is avail commercially. Filters should be placed in plastic bags immediately after removal ... The plastic bag should be sealed immediately ... The sealed bag should be labelled properly ... Waste liquids ... should be placed or collected in proper containers for disposal. The lid should be secured & the bottles properly labelled. Once filled, bottles should be placed in plastic bag, so that outer surface ... is not contaminated ... The plastic bag should also be sealed & labelled. ... Broken glassware ... should be decontaminated by solvent extraction, by chemical destruction, or in specially designed incinerators. /Chemical Carcinogens/

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Fireproof. Well closed. Cool.PRECAUTIONS FOR "CARCINOGENS": Storage site should be as close as practical to lab in which carcinogens are to be used, so that only small quantities required for ... expt need to be carried. Carcinogens should be kept in only one section of cupboard, an explosion-proof refrigerator or freezer (depending on chemicophysical properties ...) that bears appropriate label. An inventory ... should be kept, showing quantity of carcinogen & date it was acquired ... Facilities for dispensing ... should be contiguous to storage area. /Chemical Carcinogens/

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

no data available

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state clear to slightly greenish liquid
Colour Not solid @ -18°C; oil
Odour Aromatic odor
Melting point/ freezing point 191°C(dec.)(lit.)
Boiling point or initial boiling point and boiling range 160°C/0.5mmHg(lit.)
Flammability Flammable.
Lower and upper explosion limit / flammability limit no data available
Flash point 56°C(lit.)
Auto-ignition temperature no data available
Decomposition temperature no data available
pH no data available
Kinematic viscosity no data available
Solubility In water:insoluble
Partition coefficient n-octanol/water (log value) log Kow= 2.67
Vapour pressure 1.65mmHg at 25°C
Density and/or relative density 1.07
Relative vapour density no data available
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Stable under recommended storage conditions.

10.3 Possibility of hazardous reactions

Flammable; flash point: 56°C2,3-BENZOFURAN slowly polymerizes on standing. It may be sensitive to prolonged exposure to air. This compound is polymerized by H2SO4.

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

This compound is polymerized by H2SO4.

10.6 Hazardous decomposition products

no data available

11.Toxicological information

Acute toxicity

  • Oral: no data available
  • Inhalation: no data available
  • Dermal: no data available

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

Evaluation: There is inadequate evidence in humans for the carcinogenicity of benzofuran. There is sufficient evidence in experimental animals for the carcinogenicity of benzofuran. Overall evaluation: Benzofuran is possibly carcinogenic to humans (Group 2B).

Reproductive toxicity

no data available

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

  • Toxicity to fish: no data available
  • Toxicity to daphnia and other aquatic invertebrates: no data available
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

AEROBIC: Benzofuran has been shown to biodegrade in the presence of creosote-adapted microorganisms(SRC). Benzofuran biodegraded using a enriched culture from a creosote contaminated site(1) where biodegradation of benzofuran was enhanced by the degradation of other creosote compounds(1). Benzofuran was completely removed in combination with toluene, p-xylene, m-xylene, naphthalene, 1-methylnapthalene within the first 12 days of incubation, compared with a 7% loss in the acidified control microcosm(1). After 27 days, complete removal of benzofuran was observed in combination with other primary creosote substituents except 1-methylnapthalene where 95% removal was observed(1). In a study using aerobic groundwater microcosms, benzofuran at 3.3 mg/l degraded completely after 95 days (lag period = 70 days) from an aquifer contaminated with creosote compounds while from a background aquifer, benzofuran degraded after 285 days (lag period = 278 days)(2).

12.3 Bioaccumulative potential

The BCF of benzofuran in guppies exposed to 100-250 ul of a hetero PAH in 3 liters of 1:1 tapwater/deionized water for 48 hours was 360(1). According to a classification scheme(2), this BCF suggests bioconcentration in aquatic organisms is moderate(SRC).

12.4 Mobility in soil

The Koc of benzofuran is estimated as 680(SRC), using a log Kow of 2.67(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that benzofuran is expected to have low mobility in soil(SRC). Sorption of creosote compounds (including benzofuran) were measured on natural clayey till soil column(4). A Kd of 1.4 l/kg was measured for benzofuran (in presence of other creosote compounds) with a time for 50% breakthrough on the column nearly equivalent to non-adsorbing bromide ions (e.g., 37 days)(4). This data suggests that benzofuran is weakly sorbed on clayey till soil(SRC).

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

14.Transport information

14.1 UN Number

ADR/RID: UN1993 IMDG: UN1993 IATA: UN1993

14.2 UN Proper Shipping Name

ADR/RID: FLAMMABLE LIQUID, N.O.S.
IMDG: FLAMMABLE LIQUID, N.O.S.
IATA: FLAMMABLE LIQUID, N.O.S.

14.3 Transport hazard class(es)

ADR/RID: 3 IMDG: 3 IATA: 3

14.4 Packing group, if applicable

ADR/RID: III IMDG: III IATA: III

14.5 Environmental hazards

ADR/RID: no IMDG: no IATA: no

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name Common names and synonyms CAS number EC number
1-benzofuran 1-benzofuran 271-89-6 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Listed.
China Catalog of Hazardous chemicals 2015 Listed.
New Zealand Inventory of Chemicals (NZIoC) Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
Vietnam National Chemical Inventory Not Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

16.Other information

Information on revision

Creation Date Aug 11, 2017
Revision Date Aug 11, 2017

Abbreviations and acronyms

  • CAS: Chemical Abstracts Service
  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • IMDG: International Maritime Dangerous Goods
  • IATA: International Air Transportation Association
  • TWA: Time Weighted Average
  • STEL: Short term exposure limit
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • EC50: Effective Concentration 50%

References

  • IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
  • HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
  • IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
  • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
  • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
  • Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
  • ECHA - European Chemicals Agency, website: https://echa.europa.eu/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.

MSDS

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1H NMR : PredictExpand

NMR Spectrum 1H NMR : Predict

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271-89-6 NMR spectrum
More
Exposure Route Type of Test Species Observed Dose/Duration Toxic Effects
Intraperitoneal LD50 - Lethal dose, 50 percent kill Rodent - mouse 500 mg/kg 1.Details of toxic effects not reported other than lethal dose value
Oral TDLo - Lowest published toxic dose Rodent - rat 7 gm/kg/14D-I 1.Related to Chronic Data-death
Oral TDLo - Lowest published toxic dose Rodent - rat 16250 mg/kg/13W-I 1.Kidney, Ureter, Bladder-changes in tubules (including acute renal failure, acute tubular necrosis)
2.Kidney, Ureter, Bladder-changes in both tubules and glomeruli
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