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141956-26-5

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141956-26-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 141956-26-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,9,5 and 6 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 141956-26:
(8*1)+(7*4)+(6*1)+(5*9)+(4*5)+(3*6)+(2*2)+(1*6)=135
135 % 10 = 5
So 141956-26-5 is a valid CAS Registry Number.

141956-26-5Downstream Products

141956-26-5Relevant articles and documents

Thiazolidin-4-one formation. Mechanistic and synthetic aspects of the reaction of imines and mercaptoacetic acid under microwave and conventional heating

Bolognese, Adele,Correale, Gaetano,Manfra, Michele,Lavecchia, Antonio,Novellino, Ettore,Barone, Vincenzo

, p. 2809 - 2813 (2007/10/03)

Microwave irradiation of a mixture of benzylidene-anilines and mercaptoacetic acid in benzene gives 1,3-thiazolidin-4-ones in very high yield (65-90%), whereas the same reaction performed through using the conventional method, at reflux temperature, requires a much longer time and gives a much lower yield (25-69%). This difference seems to be due to some intermediates and by-products formed during the conventional reaction. On the basis of 1H NMR studies, two different mechanisms, acting in benzene and in DMF, respectively, have been hypothesized for the thiazolidin-4-one system formation.

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