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The chemical compound "2H-pyran, tetrahydro-4-methyl-2-(2-methylpropyl)-, (2R,4S)-" is a specific stereoisomer of a tetrahydro-4-methyl-2-isobutyl-2H-pyran. It is a cyclic organic molecule with a pyran ring structure, which is a type of heterocyclic compound containing one oxygen atom in a six-membered ring. The compound is characterized by its tetrahydro (four hydrogen atoms attached to the ring), 4-methyl (a methyl group attached to the fourth carbon), and 2-(2-methylpropyl) (a 2-methylpropyl group attached to the second carbon) substituents. The (2R,4S) notation indicates the specific arrangement of these substituents in three-dimensional space, with the R and S descriptors referring to the absolute configuration at the chiral centers. 2H-pyran, tetrahydro-4-methyl-2-(2-methylpropyl)-, (2R,4S)- is an example of the vast array of organic molecules that can be synthesized and studied for their potential applications in various fields, including pharmaceuticals, materials science, and chemical research.

5206-80-4

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5206-80-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5206-80-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,0 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 5206-80:
(6*5)+(5*2)+(4*0)+(3*6)+(2*8)+(1*0)=74
74 % 10 = 4
So 5206-80-4 is a valid CAS Registry Number.

5206-80-4Downstream Products

5206-80-4Relevant academic research and scientific papers

A Novel Synthesis of cis-Dihydro-rose Oxide and Related Stereochemistry

Liu, Chu-tsin,Chang, Chi-hsien,Chou, Tsu-liang

, p. 129 - 132 (2007/10/02)

A new synthesis of cis-dihydro-rose oxide from elsholtzia oil is presented.The stereochemistry of catalytic hydrogenation of elsholtziol is discussed, and configurations of the diastereoisomers of the resulting tetrahydroelsholtziol have been deduced with the aid of gas chromatography, infrared spectroscopic analysis and conformational analysis.Stereochemical study of catalytic dehydration of tetrahydroelsholtziols indicates that the dehydration-rearrangement reactions follow a trans-elimination process.

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