Cas 39247-31-9,Cyclohex-3-enyl-propynoic acid

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Check Digit Verification of cas no

The CAS Registry Mumber 39247-31-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,2,4 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 39247-31:
(7*3)+(6*9)+(5*2)+(4*4)+(3*7)+(2*3)+(1*1)=129
129 % 10 = 9
So 39247-31-9 is a valid CAS Registry Number.

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39247-31-9Relevant academic research and scientific papers

(Ethoxycarbonyliodomethyl)triphenylphosphonium Iodide: A Convenient Reagent for the Direct Synthesis of β-Substituted Propiolic Acids via the Corresponding Esters

Chenault, Jaques,Dupin, Jean-Francois E.

, p. 498 - 499 (1987)

Reaction between (ethoxycarbonyliodomethyl)triphenylphosphonium iodide, potassium carbonate, and various aromatic or aliphatic aldehydes in a liquid solid two phases system gives β-substituted propiolic esters.The corresponding acids are obtained in good yield by hydrolysis.

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