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1409940-87-9

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1409940-87-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1409940-87-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,9,9,4 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1409940-87:
(9*1)+(8*4)+(7*0)+(6*9)+(5*9)+(4*4)+(3*0)+(2*8)+(1*7)=179
179 % 10 = 9
So 1409940-87-9 is a valid CAS Registry Number.

1409940-87-9Relevant academic research and scientific papers

Ferric chloride-catalyzed C-N bond cleavage for the cyclization of arylallenes leading to polysubstituted indenes

Liu, Cong-Rong,Wang, Ting-Ting,Qi, Qing-Biao,Tian, Shi-Kai

supporting information, p. 10913 - 10915 (2012/11/07)

A range of arylallenes undergo carbocation-initiated cyclization reaction with N-benzylic and N-allylic sulfonamides in the presence of 10 mol% ferric chloride to give structurally diverse polysubstituted indenes in good yields with extremely high regioselectivity.

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