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124031-51-2

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124031-51-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124031-51-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,0,3 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 124031-51:
(8*1)+(7*2)+(6*4)+(5*0)+(4*3)+(3*1)+(2*5)+(1*1)=72
72 % 10 = 2
So 124031-51-2 is a valid CAS Registry Number.

124031-51-2Downstream Products

124031-51-2Relevant articles and documents

OPTICALLY ACTIVE FIVE-MEMBERED OXYGEN-CONTAINING RINGS. A SYNTHESIS OF (+)-ELDANOLIDE

Bloch, Robert,Seck, Matar

, p. 3731 - 3740 (1989)

Stereoselective tandem Wittig-Horner - intramolecular Michael reactions followed by a retro Diels-Alder cleavage convert the optically active tricyclic lactol 1 into 2-substituted 2,5-dihydrofurans of high enantiomeric purities.These compounds are useful synthons for the obtention of natural butenolides and butanolides as illustrated by the synthesis of the pheromone (+)-eldanolide.

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