1333493-64-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1333493-64-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,3,4,9 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1333493-64:
(9*1)+(8*3)+(7*3)+(6*3)+(5*4)+(4*9)+(3*3)+(2*6)+(1*4)=153
153 % 10 = 3
So 1333493-64-3 is a valid CAS Registry Number.
1333493-64-3Relevant articles and documents
KETOBENZOFURAN DERIVATIVES, METHOD FOR SYNTHESIZING SAME, AND INTERMEDIATES
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Paragraph 0255-0261, (2013/03/26)
The present disclosure relates to ketobenzofuran derivatives of the general formula (I): as well as to a method of synthesizing the same by coupling a quinonimine and an enaminone by a Nenitzescu reaction and to the intermediates of the synthesis thereof.