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phytane

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phytane
phytane Chem. (ˈfaɪteɪn) [ad. G. phytan (Willstätter & Hocheder 1907, in Ann. d. Chem. CCCLIV. 208): see phyt- and -ane.] A colourless liquid hydrocarbon, 3,7,11,15-tetramethylhexadecane, C20H42, that is the paraffin corresponding to phytol.1907 [see phytol]. 1911 Chem. Abstr. V. 874 Phytane, C20H42... Oxford English Dictionary
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Phytane
Phytane has many structural isomers. Geochemical parameters Pristane/Phytane ratio Pristane/phytane (Pr/Ph) is the ratio of abundances of pristane and phytane. wikipedia.org
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Crocetane
Unlike its isomer phytane, crocetane has a tail-to-tail linked isoprenoid skeleton. Analysis Due to structural similarities, crocetane often co-elutes with phytane and is hard to identify. wikipedia.org
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phytol
phytol Biochem. (ˈfaɪtɒl) [a. G. phytol (Willstätter & Hocheder 1907, in Ann. d. Chem. CCCLIV. 207): see phyt- and -ol.] A colourless oil whose molecule forms part of that of chlorophyll and vitamins E and K, and which is an acyclic terpenoid alcohol; 3,7,11,15-tetramethyl-2-hexadecenol, C20H40O.190... Oxford English Dictionary
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Pristane
Pristane and phytane are used in the fields of geology and environmental science as biomarkers to characterize origins and evolution of petroleum hydrocarbons wikipedia.org
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pristane
pristane Chem. (ˈprɪsteɪn) [ad. G. pristan (Y. Toyama 1923, in Chem. Umschau auf d. Gebiete d. Fette, Oele, Wachse u. Harze XXX. 186/1), f. L. prist-is, Gr. πρίστ-ις saw-fish, (loosely) shark; see -ane.] A saturated hydrocarbon, now known to be 2,6,10,14-tetramethyl pentadecane, C19H40, which occurs... Oxford English Dictionary
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Bisnorhopane
GC-MS and other analyses of source rocks, shales containing bisnorhopane, also provide data on pristane and phytane abundances. 28,30-Bisnorhopane occurs in shales with very low pristane to phytane ratios, which is indicative of generation under anoxic conditions. wikipedia.org
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isoprenoid
isoprenoid, a. and n. Chem. (ˈaɪsəprɪnɔɪd, aɪsəʊˈpriːnɔɪd) [f. prec. + -oid.] A. adj. Containing or designating the isoprene unit; having a molecular structure composed of such units. B. n. An isoprenoid compound.1945 Chem. Abstr. XXXIX. 5887/1 Other isoprenoid hydrocarbons, as isoprene, diterpenes,... Oxford English Dictionary
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Biphytane
For instance, the abundance ratio of the biphytane (both acyclic and cyclic) to phytane has been used to distinguish between different groups of anaerobic wikipedia.org
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Archaeol
Archaeol can also get hydrolyzed in some cases, with its side chains preserved as phytane or pristane, depending on the redox conditions. wikipedia.org
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Diterpene
GGPP is also the precursor for the synthesis of the phytane by the action of the enzyme geranylgeranyl reductase. wikipedia.org
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Chlorophyll a
Once detached from the porphyrin ring, phytol becomes the precursor of two biomarkers, pristane and phytane, which are important in the study of geochemistry wikipedia.org
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C20H42
C20H42}} The molecular formula C20H42 may refer to: Crocetane, or 2,6,11,15-tetramethylhexadecane, a diterpenoid alkane Icosane, an alkane hydrocarbon Phytane wikipedia.org
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Peregrinella
No irregular isoprenoids were detected in the Musenalp sample, and the regular isoprenoids pristane and phytane as well as n-alkanes yielded δ13C values wikipedia.org
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Methanopyrus
Terpenoid lipids are a group of lipids containing cholesterol, hopanoids, carotenoid, phytane, and bisphytane. wikipedia.org
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