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113219-94-6

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113219-94-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113219-94-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,2,1 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 113219-94:
(8*1)+(7*1)+(6*3)+(5*2)+(4*1)+(3*9)+(2*9)+(1*4)=96
96 % 10 = 6
So 113219-94-6 is a valid CAS Registry Number.

113219-94-6Downstream Products

113219-94-6Relevant articles and documents

Synthesis of α-Pyrones from Vinylogous Thiol Esters and α-Oxo Ketene Dithioacetals

Dieter, R. Karl,Fishpaugh, Jeffrey R.

, p. 2031 - 2046 (2007/10/02)

Vinylogous thiol esters and α-oxo ketene dithioacetals can be converted into α-pyrones by a strategy involving 1,2-nucleophilic addition of ester, ketone, or hydrazone enolate anions, followed by acid-promoted rearrangement to a δ-keto ester, thiol ester, or acid and subsequent enol lactonization.These multistep procedures can be carried out without isolation and purification of intermediates and afford α-pyrones in good overall yields.The synthetic routes are complementary in terms of substitution patterns and limitations.

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