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1505989-20-7

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1505989-20-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1505989-20-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,0,5,9,8 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1505989-20:
(9*1)+(8*5)+(7*0)+(6*5)+(5*9)+(4*8)+(3*9)+(2*2)+(1*0)=187
187 % 10 = 7
So 1505989-20-7 is a valid CAS Registry Number.

1505989-20-7Relevant academic research and scientific papers

Radical ipso-substitution of a carbon-fluorine bond leading to fluoro-7-azaindolines and fluoro-7-azaindoles

Liu, Zhibo,Qin, Ling,Zard, Samir Z.

, p. 2704 - 2707 (2014)

Rare examples of a synthetically useful radical ipso-substitution of a carbon-fluorine bond are reported, leading to highly functionalized 5,6-difluoro-7-azaindolines. An unexpected hydrogen atom translocation and fragmentation with loss of molecular nitrogen and formation of a nitrile were observed in the case of an N-benzyl-tetrazole derivative.

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