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39549-69-4

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39549-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39549-69-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,5,4 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 39549-69:
(7*3)+(6*9)+(5*5)+(4*4)+(3*9)+(2*6)+(1*9)=164
164 % 10 = 4
So 39549-69-4 is a valid CAS Registry Number.

39549-69-4Downstream Products

39549-69-4Relevant articles and documents

N-Butylammonium carboxylates/Tf2O: Ionic liquid based systems for the synthesis of unsymmetrical imides via a Ritter-type reaction

Khodaei, Mohammad Mehdi,Nazari, Ehsan

experimental part, p. 2881 - 2884 (2012/07/28)

We have developed a new method for the preparation of unsymmetrical imides using liquid carboxylate salts via a Ritter-type process. The reactions were carried out with nitriles and n-butylammonium carboxylates as ionic liquids in the presence of triflic anhydride (Tf2O) as the promoter. Mild reaction conditions, simplicity of the procedure, and proton-free conditions are the main advantages of this procedure.

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