Cas 546834-38-2,3-(2-hydroxy-benzoyl)-9<i>H</i>-fluorene-1-carboxylic acid ethyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 546834-38-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,6,8,3 and 4 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 546834-38:
(8*5)+(7*4)+(6*6)+(5*8)+(4*3)+(3*4)+(2*3)+(1*8)=182
182 % 10 = 2
So 546834-38-2 is a valid CAS Registry Number.

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546834-38-2Relevant academic research and scientific papers

Electron deficient dienes 3:1 rapid access to 2-hydroxybenzophenones via inverse electron demand Diels-Alder-driven domino reactions of a chromone-fused electron deficient diene with enamines

Bodwell, Graham J.,Hawco, Krista M.,Da Silva, Robin P.

, p. 179 - 182 (2007/10/03)

Horner-Wadsworth-Emmons reaction of 3-formyl-chromone affords an electron deficient 1,3-diene that undergoes domino inverse electron demand Diels-Alder/elimination/intramolecular elimination reactions with enamines to afford functionalized 2-hydroxybenzophenones.

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