1,1,3,3,3-pentafluoro-2-(trifluoromethyl)prop-1-ene

Edit: 1,1,3,3,3-pentafluoro-2-(trifluoromethyl)prop-1-ene

CAS No.:
382-21-8
Formula:
C4F8
Molecular Weight: 200.03000

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Overview
Description
Basic Info
Numbering system
Properties
Safety Info
Synthesis Route
Downstream Product

Description

Perfluoroisobutene (PFIB), also known as 1,1,3,3,3-pentafluoro-2-(trifluoromethyl)prop-1-ene, is a fluorocarbon alkene. It is a hydrophobic reactive gas with boiling point at 7 °C. It is a strong electrophile.
PFIB is about 10 times as toxic as phosgene. Its inhalation can lead to pulmonary edema, which may be fatal. Onset of symptoms can take 1-4 hours after inhalation. Treatment is based on management of the pulmonary edema (usually with high-dose corticoids and other medication/measures) and associated disorders (e.g. heart failure, hypocalcemia etc.). Many cases resolve within 72 hours without major long-term effects.
In contact with water PFIB undergoes rapid hydrolysis, producing various reactive compounds and fluorophosgene.
PFIB is a product of pyrolysis of polytetrafluoroethylene (PTFE), one of the substances causing polymer fume fever.
It is a Schedule 2 substance of the Chemical Weapons Convention.

Basic Info

Chemical Name	1,1,3,3,3-pentafluoro-2-(trifluoromethyl)prop-1-ene
Synonyms	Octafluoroisobutylene; Isobutene,octafluoro; Octafluoro-sec-butene; octafluoroisobutene; PFIB; Perfluoroisobutylene; 1,1,3,3,3-pentafluoro-2-(trifluoro-methyl)propene; 1-Propene, 1,1,3,3,3-pentafluoro-2-(trifluoromethyl)-; perfluoro-2-(trifluoromethyl)-propene; 1,1,3,3,3-Pentafluoro-2-(trifluoromethyl)-1-propene; 1,1,3,3,3-pentafluoro-2-(trifluoromethyl)prop-1-ene; Expand
CAS No.	382-21-8
Molecular Formula	C4F8
Molecular Weight	200.03000
PSA	0.00000
LogP	3.26160