1397749-84-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1397749-84-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,7,7,4 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1397749-84:
(9*1)+(8*3)+(7*9)+(6*7)+(5*7)+(4*4)+(3*9)+(2*8)+(1*4)=236
236 % 10 = 6
So 1397749-84-6 is a valid CAS Registry Number.
1397749-84-6Relevant articles and documents
PROCESS FOR SYNTHESIZING KETO-BENZOFURAN DERIVATIVES
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Paragraph 0278-0282, (2014/02/16)
The invention relates to a process for synthesizing benzofuran derivatives, in particular dronedarone of formula (D), comprising a step of Friedel-Crafts acylation starting from a sulfonamido-benzofuran ester intermediate.
