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Benzene

Benzene

(Science: chemistry) a volatile, very inflammable liquid, contained in the naphtha produced by the destructive distillation of coal, from which it is separated by fractional distillation. The name is sometimes applied also to the impure commercial product or benzole, and also, but rarely, to a similar mixed product of petroleum.

The benzene nucleus or benzene ring, is a closed chain or ring, consisting of six carbon atoms, each with one hydrogen atom attached, regarded as the type from which the aromatic compounds are derived.

Structure: C6H6

Origin: From benzoin.


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Re: Is DNA living or non-living thing?? get the answer here

... acids. Only two purines and three pyrimidines occur widely in nucleic acids. B. Pyrimidine is a heterocyclic aromatic organic compound similar to benzene and pyridine, containing two nitrogen atoms at positions 1 and 3 of the six-member ring. A purine is a heterocyclic aromatic organic compound, ...

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by Dov Henis
Fri Dec 28, 2012 4:29 pm
 
Forum: Molecular Biology
Topic: Is DNA living or non-living thing?? get the answer here
Replies: 23
Views: 30674

Re: how to memorize the amino acid

... tricky to remember, but simply they are methyl-hydroxyl and thioether derivatives. The aromatic amino acids are quite simple, since you just add benzene to the Ala and you have (surprisingly :lol:) phenylalanine; just add hydroxyl and you get tyrosine. Add imidazole and you get histidine. With ...

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by JackBean
Thu Feb 09, 2012 9:52 am
 
Forum: General Discussion
Topic: how to memorize the amino acid
Replies: 4
Views: 2117

Re: Theories - Origin of Life

... acids. Only two purines and three pyrimidines occur widely in nucleic acids. B. Pyrimidine is a heterocyclic aromatic organic compound similar to benzene and pyridine, containing two nitrogen atoms at positions 1 and 3 of the six-member ring. A purine is a heterocyclic aromatic organic compound, ...

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by Dov Henis
Fri Dec 23, 2011 7:29 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 548
Views: 534943

Re: thin layer chromatography

Hi Jack, I agree, though the xanthophylls might move a little. pi clouds might give some affinity with the conjugated mobile phase (benzene). - Jon

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by jonmoulton
Mon Nov 28, 2011 4:59 pm
 
Forum: Molecular Biology
Topic: thin layer chromatography
Replies: 4
Views: 1300

thin layer chromatography

... they are wrong :lol: Anyway, we are doing TLC with extract from red pepper, the stationary phase is silufol (Al2O3) and the mobile phase is benzene. Thus the more hydrophobic pigment, the further it should travel, right? Thus like beta-carotene should be first and some hydroxylated xanthophyls ...

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by JackBean
Fri Nov 25, 2011 9:36 pm
 
Forum: Molecular Biology
Topic: thin layer chromatography
Replies: 4
Views: 1300
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