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904744-84-9

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904744-84-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 904744-84-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,4,7,4 and 4 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 904744-84:
(8*9)+(7*0)+(6*4)+(5*7)+(4*4)+(3*4)+(2*8)+(1*4)=179
179 % 10 = 9
So 904744-84-9 is a valid CAS Registry Number.

904744-84-9Relevant articles and documents

Orthogonal synthesis of isoindole and isoquinoline derivatives from organic azides

Hui, Benjamin Wei-Qiang,Chiba, Shunsuke

supporting information; experimental part, p. 729 - 732 (2009/08/12)

(Chemical Equation Presented) α-Azido carbonyl compounds bearing a 2-alkenylaryl moiety at the α-position are found to be promising precursors for synthesis of isoindole and isoquinoline derivatives via 1,3-dipolar cycloaddrtion of azides onto alkenes and fcrelectrocyclization of N-H imine intermediates, respectively.

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