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Substance Name: 5-Ethylidene-2-norbornene
RN: 16219-75-3
UNII: Q4D40UVR0R
InChIKey: OJOWICOBYCXEKR-KRXBUXKQSA-N

Molecular Formula

  • C9-H12

Molecular Weight

  • 120.194
 

Classification Codes

Classification Codes

  • Human Data
  • Reproductive Effect
  • Skin / Eye Irritant

Superlist Classification Code

  • Ceiling (5 ppm)
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Names and Synonyms

Name of Substance

  • 5-Ethylidene-2-norbornene

Synonyms

  • 2-Norbornene, 5-ethylidene-
  • 5-Ethylidene-2-norbornene
  • 5-Ethylidenebicyclo(2.2.1)hept-2-ene
  • BRN 2039935
  • CCRIS 4816
  • EC 240-347-7
  • EINECS 240-347-7
  • ENB
  • Ethylidenenorbornene
  • HSDB 1160
  • UNII-Q4D40UVR0R

Systematic Names

  • 2-Norbornene, 5-ethylidene-
  • 5-Ethylidene-8,9,10-trinorborn-2-ene
  • Bicyclo(2.2.1)hept-2-ene, 5-ethylidene-
  • Ethylidenenorbornene

Superlist Names

  • 2-Norbornene, 5-ethylidene-
  • 5-Ethylidene-2-norbornene
  • Bicyclo(2.2.1)hept-2-ene, 5-ethylidene-
  • ENB
  • Ethylidene norbornene

Registry Numbers

CAS Registry Number

  • 16219-75-3

FDA UNII

  • Q4D40UVR0R

Other Registry Numbers

  • 1135584-95-0
  • 59006-74-5
  • 62181-74-2

System Generated Number

  • 0016219753

Structure Descriptors

InChI

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

InChIKey

OJOWICOBYCXEKR-KRXBUXKQSA-N

Smiles

C1(\[C@@H]2C[C@@H](C1)C=C2)=C\C

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LC50 inhalation 2896ppm/4H (2896ppm) SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Toxicology and Applied Pharmacology. Vol. 20, Pg. 250, 1971.
human TCLo inhalation 6ppm/30M (6ppm) SENSE ORGANS AND SPECIAL SENSES: OTHER CHANGES: OLFACTION

SENSE ORGANS AND SPECIAL SENSES: CONJUNCTIVE IRRITATION: EYE

SENSE ORGANS AND SPECIAL SENSES: CHANGE IN FUNCTION: TASTE
Toxicology and Applied Pharmacology. Vol. 20, Pg. 250, 1971.
mouse LC50 inhalation 732ppm/4H (732ppm) BEHAVIORAL: MUSCLE WEAKNESS Toxicology and Applied Pharmacology. Vol. 20, Pg. 250, 1971.
mouse LD50 oral 3250mg/kg (3250mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 18(10), Pg. 52, 1974.
rabbit LC50 inhalation 3104ppm/4H (3104ppm) SENSE ORGANS AND SPECIAL SENSES: ULCERATED NASAL SEPTUM: OLFACTION Toxicology and Applied Pharmacology. Vol. 20, Pg. 250, 1971.
rabbit LD50 skin 9170uL/kg (9.17mL/kg)   American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969.
rat LC50 inhalation 1246ppm/4H (1246ppm) BEHAVIORAL: MUSCLE WEAKNESS Toxicology and Applied Pharmacology. Vol. 20, Pg. 250, 1971.
rat LD50 intraperitoneal 2830uL/kg (2.83mL/kg)   National Technical Information Service. Vol. OTS0536403,
rat LD50 oral 2830uL/kg (2.83mL/kg)   American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Boiling Point 146 deg C   EXP
log P (octanol-water) 3.82 (none)   EXP
Water Solubility 8.9 mg/L 25 EXP
Vapor Pressure 3.590 mm Hg 25 EST
Henry's Law Constant 0.126 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 1.47E-10 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.