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1240470-90-9

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1240470-90-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1240470-90-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,4,7 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1240470-90:
(9*1)+(8*2)+(7*4)+(6*0)+(5*4)+(4*7)+(3*0)+(2*9)+(1*0)=119
119 % 10 = 9
So 1240470-90-9 is a valid CAS Registry Number.

1240470-90-9Downstream Products

1240470-90-9Relevant academic research and scientific papers

Synthesis of polyheterocyclic compounds derived from 6-amino- 4-aryl-2-r-4h-furo[2,3-b]pyran-5-carbonitriles

Aniskova,Chadina,Yegorova

, p. 1460 - 1463 (2009)

Syntheses were developed for 4-aryl-6-ethoxy-2-R-furo[2,3-b]pyridine-5- carbonitriles and ethyl esters of 5-amino-4-aryl-7-methyl-2-R-1,9-dioxa-8- azacyclopenta[b]naphthalene-6-carboxylic acids based on the reaction of 6-amino-4-aryl-2-R-4H-furo[2,3-b]pyr

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