Keywords: nucleobases, Murchison meteorite, carbon isotope, extraterrestrial. Comparative analyses were carried out on the Murray (CM2), Allende (CV3), and New Concord (L6) chondrites that illustrate the nature of the contamination problem encountered with carbonaceous chondrites. pyrimidine compounds are indigenous components of the Murchison meteorite. When interior samples were obtained and the analyses carried out under conditions that minimized environmental contaminants, we have found the principal aliphatic components of the Murchison meteorite to be a structurally diverse suite of C15 to C30 branched alkyl-substituted mono-, di-, and tricyclic alkanes. These were found, often many years after crash landing. The Murchison Meteorite is a famous carbonaceous chondrite - it landed on Earth in the late morning on 28 September 1969 in Victoria, Australia. But there have been 16 other meteorites recorded in the state. An inter ior piec e of about 15g of Murchison meteorite as well as 15g of soil. 1 El meteorit Murchison és un meteorit de 100 kg que va ser descobert a Murchison, a lestat de Victòria, a Austràlia, lany 1969. These results demonstrate that the nucleic acids discovered in the meteorite, which are components of the genetic code in modern biochemistry, were already present in the early solar system and may. We have reinvestigated this question using benzene-methanol as the extraction solvent, silica-gel chromatography for fractionation of the extract, and GC-MS, and IR and NMR spectroscopic techniques for the analyses. The Murchison is the only known meteorite to be witnessed and collected in Victoria. Carbon-rich meteorites such as the Murchison are thought to be responsible for delivering biologically-relevant organic material to the young Earth. It is rich in carbon, contains amino acids and calcium-aluminum inclusions. Murchison is one of the most studied meteorites of all time. Shortly after the Murchison fall, one laboratory found them to be mainly cycloalkanes another found, in order of abundance, branched alkanes, olefins, and cycloalkanes while a third reported predominantly n-alkanes followed by methyl alkanes and olefins. The Murchison meteorite fell on Septemnear the village of Murchison in southeastern Australia. However, the nature of the aliphatic hydrocarbons has remained unclear. ![]() The fall of the Murchison meteorite (CM2) provided pristine samples which allowed the resolution of some prior ambiguities as, for example, in the case of the amino acids. The Murchison meteorite, which fell in Murchison, Australia in 1969, has been found to contain a huge range of organic compounds including more than 70 different amino acids. The indigenous organic compounds of carbonaceous chondrites have been difficult to characterize because of problems arising from terrestrial contamination.
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