CAS No.: 192-97-2 Formula: C20H12 Molecular Weight: 252.30900
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CAS No.: 192-97-2 Formula: C20H12 Molecular Weight: 252.30900
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Benzo[e]pyrene is a polycyclic aromatic hydrocarbon with the chemical formula C20H12. It is listed as a Group 3 carcinogen by the IARC.
In February 2014, NASA announced a greatly upgraded database for tracking polycyclic aromatic hydrocarbons (PAHs), including Benzo[e]pyrene, in the universe. According to scientists, more than 20% of the carbon in the universe may be associated with PAHs, possible starting materials for the formation of life. PAHs seem to have been formed shortly after the Big Bang, are widespread throughout the universe, and are associated with new stars and exoplanets.

Basic Info

Numbering system

MDL number MFCD00003605
EINECS number 205-892-7
PubChem number 24891539
BRN number 1911334
RTECS number DJ4200000


Density 1.286g/cm3
Boiling Point 467.5ºC at 760 mmHg
Melting Point 177-180ºC(lit.)
Flash Point -18ºC
Refractive Index 1.887
Storage Condition APPROX 4ºC
Vapor Pressure 1.81E-08mmHg at 25°C

Safety Info

Hazard Class 6.1(b)
Packing Group III
RIDADR UN 3077 9/PG 3
Risk Statements R45; R50/53; R67; R65; R38; R11
Hazard Codes T; N; Xn; F
SDS 1.0 Expand

SDS 1.0

Download/Modify | Technical supported by For US version, EU version (23 languages) and more, please refer to


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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017


1.1 GHS Product identifier

Product name benzo[e]pyrene

1.2 Other means of identification

Product number -
Other names 4,5-Benzpyrene

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
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

Carcinogenicity, Category 1B

Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1

2.2 GHS label elements, including precautionary statements

Signal word


Hazard statement(s)

H350 May cause cancer

H410 Very toxic to aquatic life with long lasting effects

Precautionary statement(s)

P201 Obtain special instructions before use.

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

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

P273 Avoid release to the environment.


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

P391 Collect spillage.


P405 Store locked up.


P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification


3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
benzo[e]pyrene benzo[e]pyrene 192-97-2 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

SYMPTOMS: This compound may cause irritation of the skin on contact. ACUTE/CHRONIC HAZARDS: This chemical may cause irritation to skin on contact. It is toxic by inhalation. When heated to decomposition it emits acrid smoke and irritating fumes.

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

Immediate First Aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Aromatic hydrocarbons and related compounds/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

Suitable extinguishing media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.[Sigma-Aldrich; Safety Data Sheet for Benzo

5.2 Specific hazards arising from the chemical

Flash point data for this compound are not available. It is probably 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

Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.

6.3 Methods and materials for containment and cleaning up

ACCIDENTAL RELEASE MEASURES: Personal precautions, protective equipment and emergency procedures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. Environmental precautions: Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Methods and materials for containment and cleaning up: Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for disposal.[Sigma-Aldrich; Safety Data Sheet for Benzo

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

Keep container tightly closed in a dry and well-ventilated place.[Sigma-Aldrich; Safety Data Sheet for Benzo

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 0.1 mg/cu m (cyclohexane-extractable fraction). /Coal tar pitch volatiles/

NIOSH considers coal tar pitch volatiles to be potential occupational carcinogens. NIOSH usually recommends that occupational exposures to carcinogens be limited to the lowest feasible concentration. /Coal tar pitch volatiles/

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 PHYSICAL DESCRIPTION: Colorless crystals or white crystalline solid.
Colour Prisms or plates from benzene
Odour no data available
Melting point/ freezing point 177-180ºC(lit.)
Boiling point or initial boiling point and boiling range 467.5ºC at 760 mmHg
Flammability no data available
Lower and upper explosion limit / flammability limit no data available
Flash point -18ºC
Auto-ignition temperature no data available
Decomposition temperature no data available
pH no data available
Kinematic viscosity no data available
Solubility less than 1 mg/mL at 22.78°C
Partition coefficient n-octanol/water (log value) log Kow = 6.44
Vapour pressure 1.81E-08mmHg at 25°C
Density and/or relative density 1.286g/cm3
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.[Sigma-Aldrich; Safety Data Sheet for Benzo

10.3 Possibility of hazardous reactions

BENZO(E)PYRENE may be sensitive to prolonged exposure to light.

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

Incompatible materials: Strong oxidizing agents.[Sigma-Aldrich; Safety Data Sheet for Benzo

10.6 Hazardous decomposition products

Hazardous decomposition products formed under fire conditions - Carbon oxides.[Sigma-Aldrich; Safety Data Sheet for Benzo

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


OVERALL EVALUATION: Group 3: The agent is not classifiable as to its carcinogenicity to humans.

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

In general, polynuclear aromatic hydrocarbons (PAHs) with five or more benzene rings may not biodegrade readily(1). Benzo(e)pyrene contains five benzene rings. In one biodegradation study, the half-life for the largest PAH studied, benzo(a)pyrene, was 875 days in petroleum-contaminated sediment; rates in pristine sediment were 10 to 400 times slower(2). On this basis, benzo(e)pyrene is expected to be resistant to biodegradation. PAHs with four or more rings, such as benzo(e)pyrene, are expected to be resistant to biodegradation(3).

12.3 Bioaccumulative potential

An estimated BCF of 8200 was calculated in fish for benzo(e)pyrene(SRC), using a log Kow of 6.44(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is very high(SRC), provided the compound is not metabolized by the organism(SRC). However, it may not bioconcentrate in aquatic organisms which contain microsomal oxidase, such as fish, as this enzyme enables the rapid metabolism of certain polycyclic aromatic hydrocarbons(4). A measured fish biotransformation half-life of 1.1 days has been reported for the analogous compound benzo(a)pyrene(5).

12.4 Mobility in soil

A log Koc of 5.84 (Koc of 6.9X10+5) was measured for benzo(e)pyrene in an alluvial grassland soil at 20°C(1); desorption tests using 11 soils resulted in an approximated log Koc range of 6.11-7.90(1). According to a classification scheme(2), these Koc values suggests that benzo(e)pyrene is expected to be immobile in soil. Collection and analysis of whole water samples from remote and offshore locations in the Baltic Sea revealed most benzo(e)pyrene is contained in particulate (sediment) phase with an apparent log Koc of 7.2(3). A sediment-porewater partition coefficient of 1.5X10+6 was measured for benzo(e)pyrene in sediments from a mudflat in San Francisco Bay(4).

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods


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: UN3077 IMDG: UN3077 IATA: UN3077

14.2 UN Proper Shipping Name


14.3 Transport hazard class(es)


14.4 Packing group, if applicable


14.5 Environmental hazards

ADR/RID: yes IMDG: yes IATA: yes

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
benzo[e]pyrene benzo[e]pyrene 192-97-2 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Not Listed.
China Catalog of Hazardous chemicals 2015 Not Listed.
New Zealand Inventory of Chemicals (NZIoC) Not Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Not Listed.
Vietnam National Chemical Inventory Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

16.Other information

Information on revision

Creation Date Aug 16, 2017
Revision Date Aug 16, 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%


  • IPCS - The International Chemical Safety Cards (ICSC), website:
  • HSDB - Hazardous Substances Data Bank, website:
  • IARC - International Agency for Research on Cancer, website:
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website:
  • CAMEO Chemicals, website:
  • ChemIDplus, website:
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website:
  • Germany GESTIS-database on hazard substance, website:
  • ECHA - European Chemicals Agency, website:

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 Expand
13C NMR : in CDCl3Expand

NMR Spectrum 13C NMR : in CDCl3


C20 H12 0.036 g : 1.5 ml CDCl3

ppm Int. Assign.
131.63 506 1
130.25 416 2
129.23 360 3
127.50 1000 4 *
127.39 1000 5 *
126.19 944 6 #
126.07 1000 7 #
124.32 191 8
123.73 933 9
120.30 921 10

IR : KBr discExpand
Mass Expand
Exposure Route Type of Test Species Observed Dose/Duration Toxic Effects
Oral TDLo - Lowest published toxic dose Rodent - mouse 360 mg/kg/43W-I 1.Tumorigenic-equivocal tumorigenic agent by RTECS criteria
Administration onto the skin TDLo - Lowest published toxic dose Rodent - mouse 240 mg/kg/30W-I 1.Tumorigenic-equivocal tumorigenic agent by RTECS criteria
2.Skin and Appendages-tumors
Subcutaneous TDLo - Lowest published toxic dose Rodent - mouse 160 mg/kg 1.Tumorigenic-equivocal tumorigenic agent by RTECS criteria
2.Tumorigenic-facilitates action of known carcinogen
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