Propylene (115-07-1)

?Propene (CAS NO.115-07-1) has a higher density and boiling point than ethylene due to its greater size. It has a slightly lower boiling point than propane and is thus more volatile.?It has one double bond, and is the second simplest member of the alkene class of hydrocarbons, and it is also second in natural abundance.?At room temperature, propene is a colourless, odourless gas, though when used as a fuel, it is mixed with minute quantities of foul-smelling sulfurous compounds (mercaptans) so that gas leaks can be readily detected.
It?has the same empirical formula as cyclopropane but their atoms are connected in different ways, making these molecules structural isomers.

IARC Cancer Review: Group 3 IMEMDT ?? IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 ,1987,p. 56.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.:?) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . NTP Carcinogenesis Studies (inhalation); No Evidence: mouse, rat NTPTR* ?? National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No. NTP-TR-272 ,1985. . Reported in EPA TSCA Inventory.