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Safety Information

151467

Sigma-Aldrich

5-Ethylidene-2-norbornene

contains 100-700 ppm BHT as inhibitor, mixture of endo and exo, 99%

Synonym(s):

2-Ethylidene-5-norbornene, 2-Ethylidenebicyclo[2.2.1]hept-5-ene, 5-Ethylidenebicyclo[2.2.1]hept-2-ene, 5-Ethylidenenorbornene, Ethylidenenorbornene

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About This Item

Empirical Formula (Hill Notation):
C9H12
CAS Number:
16219-75-3
Molecular Weight:
120.19
EC Number:
240-347-7
MDL number:
MFCD00167576
UNSPSC Code:
12352100
PubChem Substance ID:
24849136
NACRES:
NA.22
form:
liquid
Assay:
99%

vapor density

4.1 (vs air)

Quality Level

100

vapor pressure

4.6 mmHg ( 20 °C)

Assay

99%

form

liquid

contains

100-700 ppm BHT as inhibitor

expl. lim.

~6.4 %

refractive index

n20/D 1.49 (lit.)

bp

146 °C (lit.)

density

0.893 g/mL at 25 °C (lit.)

SMILES string

C\C=C1/C[C@H]2C[C@@H]1C=C2

InChI

1S/C9H12/c1-2-8-5-7-3-4-9(8)6-7/h2-4,7,9H,5-6H2,1H3/b8-2+/t7-,9-/m0/s1

InChI key

OJOWICOBYCXEKR-WHZSQGQPSA-N

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General description

5-Ethylidene-2-norbornene, also known as ethylidenenorbornene, is a bicyclic diene and a commercial petrochemical. It is widely used in the chemical industry as a copolymer for the synthesis of various polymer materials.

Application

5-Ethylidene-2-norbornene was used as self-healing agent for polymeric composites.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 3 - Skin Irrit. 2 - STOT RE 2 Inhalation

Target Organs

Liver,Testes

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

83.3 °F - closed cup

Flash Point(C)

28.5 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PRTR

Class I Designated Chemical Substances

FSL

Group 4: Flammable liquids
Type 2 petroleums
Hazardous rank III
Water insoluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

151467-5ML:
151467-2L:4548173928852
151467-BULK:
151467-VAR:
151467-500ML:4548173928869
151467-100ML:4548173928845

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW4194
STBK2794
STBJ3473
STBH2831
STBG6621

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Lee JK, et al.
Macromolecular Research, 12(5), 2004-2004 (2004)
Carolyn Lee et al.
Chemosphere, 56(3), 285-297 (2004-06-03)
Several predictive models were used to assess aquatic exposure, persistence (P) and potential for long-range transport (LRT) of 5-ethylidene-2-norbornene (ENB). Such estimations are components of the assessment process for persistent, bioaccumulative and toxic (PBT) substances, which are also referred to
B Ballantyne et al.
Journal of applied toxicology : JAT, 17(4), 211-221 (1997-07-01)
The acute toxicity and primary irritancy of the industrial chemicals 5-ethylidene-2-norbornene (ENB) and 5-vinyl-2-norbornene (VNB) were studied. They are of moderate acute peroral toxicity in the rat, with LD50 values for ENB of 2.54 (male) and 5.66 (female) ml kg(-1)
5-Ethylidene-2-norbornene.
B Ballantyne et al.
Journal of applied toxicology : JAT, 19(4), 291-294 (1999-08-10)
B Ballantyne et al.
Journal of applied toxicology : JAT, 17(4), 197-210 (1997-07-01)
5-Ethylidene-2-norbornene (ENB) is an industrial chemical whose physical properties indicate a likelihood for vapor exposure to humans. The potential for target organ or cumulative toxicity was investigated in rats exposed for 6 h per day for 9 days over an
View All Related Papers

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