2,5-Norbornadiene
Agent Name
2,5-Norbornadiene
Alternative Name
Bicyclo(2.2.1)hepta-2,5-diene
CAS Number
121-46-0
Formula
C7-H8
Major Category
Other Classes
Synonyms
Bicyclo(2.2.1)heptadiene; 8,9,10-Trinorborna-2,5-diene; Bicyclo(2.2.1)hepta-2,5-diene; Norbornadiene; [ChemIDplus] Bicycloheptadiene; Bicyclo[2.2.1]hepta-2,5-diene, inhibited; Dicycloheptadiene; 3,6-Methano-1,4-cyclohexadiene; 2,5-Norbornadiene, inhibited; [CAMEO] UN2251
Category
Aliphatics, Unsaturated
Description
Liquid with a foul odor; [Merck Index] Colorless liquid; [CAMEO]
Sources/Uses
Used to make synthetic rubber; [ChemIDplus] Used in organic, organometallic, and petrochemical synthesis; Used as an intermediate for aldrin; [Merck Index]
Comments
May polymerize; May cause skin, eye, and mucous membrane irritation; [CAMEO] Stabilized with BHT (butylated hydroxytoluene, CAS# 128-37-0); An irritant; [Alfa Aesar MSDS] 2,5-Norbornadiene, stabilized (UN2251) has warning of explosive polymerization. [ERG 2016] See "2-Norbornene."
Biomedical References
Exposure Assessment
Vapor Pressure
25.5 mm Hg
Lethal Concentration
LC50 (rat) = 14,100 ppm/8hr
Explosive Polymerization
Yes
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "2,5-Norbornadiene, stabilized."
NFPA
may ignite at ambient temp
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.