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(E)-5-(2-Bromo-1-ethoxy-ethoxy)-pent-2-enoic acid (1R,2S,5R)-5-methyl-2-(1-methyl-1-phenyl-ethyl)-cyclohexyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

189265-57-4

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189265-57-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189265-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,2,6 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 189265-57:
(8*1)+(7*8)+(6*9)+(5*2)+(4*6)+(3*5)+(2*5)+(1*7)=184
184 % 10 = 4
So 189265-57-4 is a valid CAS Registry Number.

189265-57-4Relevant academic research and scientific papers

Diastereofacial selectivity of radical cyclization using chiral α,β-unsaturated ester and amide: Investigation of a new chiral synthon synthesis

Katsumata, Akira,Iwaki, Takehiko,Fukumoto, Keiichiro,Ihara, Masataka

, p. 605 - 616 (2007/10/03)

The chiral α,β-unsaturated ester (3a) gave cyclic acetal (4aA) in a highly diastereoselective manner (>98% de) by radical cyclization, which was carried out in the presence of MAD. Furthermore, 4aA was converted into chiral lactone (9), possessing the stereogenic center with three differentiated C-2 units.

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