Search results
Results from the WOW.Com Content Network
Dibenzopyrenes are a group of high molecular weight polycyclic aromatic hydrocarbons with the molecular formula C 24 H 14.There are five isomers of dibenzopyrene which differ by the arrangement of aromatic rings: dibenzo[a,e]pyrene, dibenzo[a,h]pyrene, dibenzo[a,i]pyrene, dibenzo[a,l]pyrene, and dibenzo[e,l]pyrene.
Benzo[a]pyrene (BaP or B[a]P) is a polycyclic aromatic hydrocarbon and the result of incomplete combustion of organic matter at temperatures between 300 °C (572 °F) and 600 °C (1,112 °F). The ubiquitous compound can be found in coal tar, tobacco smoke and many foods, especially grilled meats.
Or the formation of the pyrene dibenzo-(a.1)-pyrene from the anthracene 1-phenylbenz(a)anthracene (66% yield). [8] An example of the Scholl reaction. One study showed that the reaction lends itself to cascade reactions to form more complex polycyclic aromatic hydrocarbons [9]
Dibenz(a,h)anthracene is a polycyclic aromatic hydrocarbon with five benzene rings. It has low water solubility and low volatility and therefore occurs predominantly in solid form, white to light yellow crystalline, bound to particulates in polluted air, soil, or sediment. [2]
Chemical structure of benzo[a]pyrene Chemical structure of benzo[e]pyrene. A benzopyrene is an organic compound with the formula C 20 H 12.Structurally speaking, the colorless isomers of benzopyrene are pentacyclic hydrocarbons and are fusion products of pyrene and a phenylene group.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate
Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.
Dibenzo[a,j]acridine 9.1E-05 Cal EPA Dibenzo[a,h]pyrene: 9.1E-07 Cal EPA Dibenzo[a,l]pyrene: 9.1E-07 Cal EPA Dibenzo[a,e]pyrene: 9.1E-06 Cal EPA Dibenzo[c,g]carbazole 9.1E-06 Cal EPA Ethyl carbamate: 3.5E-05 Cal EPA Ethylene oxide: 1.1E-04 Cal EPA Ethylenethiourea: 7.7E-04 Cal EPA Formaldehyde: 7.7E-04 U.S. EPA Hydrazine: 2.0E-06 U.S. EPA ...