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4-carboxymethoxymethyl-7-benzyloxy-5-heptenal is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

121399-90-4

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121399-90-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121399-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,3,9 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121399-90:
(8*1)+(7*2)+(6*1)+(5*3)+(4*9)+(3*9)+(2*9)+(1*0)=124
124 % 10 = 4
So 121399-90-4 is a valid CAS Registry Number.

121399-90-4Relevant academic research and scientific papers

INTRAMOLECULAR ENE APPROACH TO STEREOCONTROLLED SYNTHESIS OF CYCLOPENTANOIDS

Takahashi, Kazuhiko,Sato, Hisao,Mikami, Koichi,Nakai, Takeshi

, p. 247 - 250 (2007/10/02)

A new and stereoselective approach to cyclopentanoid synthesis is described.The key step is the thermal intramolecular ene reaction of 4-carboxymethyl-7-benzyloxy-5-heptanal, prepared by the Claisen rearrangement, to afford 2,3-disubstituted cyclopentanol derivative in a highly stereoselective fashion.

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