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1616405-21-0

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1616405-21-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1616405-21-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,6,4,0 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1616405-21:
(9*1)+(8*6)+(7*1)+(6*6)+(5*4)+(4*0)+(3*5)+(2*2)+(1*1)=140
140 % 10 = 0
So 1616405-21-0 is a valid CAS Registry Number.

1616405-21-0Relevant articles and documents

Intramolecular annulation of aromatic rings with N-sulfonyl 1,2,3-triazoles: Divergent synthesis of 3-methylene-2,3-dihydrobenzofurans and 3-methylene-2,3-dihydroindoles

Tang, Xiang-Ying,Zhang, Yong-Sheng,He, Lv,Wei, Yin,Shi, Min

, p. 133 - 136 (2015/01/09)

The controllable synthesis of 3-methylene-2,3-dihydrobenzofurans 2 and 3-methylene-2,3-dihydroindoles 5 has been developed through Rh-catalyzed intramolecular annulation of aromatic rings with azavinyl carbenes. This journal is

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