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117845-31-5

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117845-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117845-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,8,4 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 117845-31:
(8*1)+(7*1)+(6*7)+(5*8)+(4*4)+(3*5)+(2*3)+(1*1)=135
135 % 10 = 5
So 117845-31-5 is a valid CAS Registry Number.

117845-31-5Relevant articles and documents

Chemistry of furans: Part VIII - Synthesis of 5-dialkylamino-2-furanamides and furanopeptides

Rai, Usha Kumari,Mishra, S K,Shanker, Brija,Singh, Sujan,Rao, R Balaji

, p. 618 - 623 (2007/10/02)

The synthesis of 5-dialkylamino-furanamides by the nucleophilic displacement of bromine on 5-bromo-2-furanamides with pyrrolidine, piperidine and morpholine is described.Several other primary and secondary amines as well as nucleophiles such as sodio amid

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