1638618-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1638618-21-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,8,6,1 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1638618-21:
(9*1)+(8*6)+(7*3)+(6*8)+(5*6)+(4*1)+(3*8)+(2*2)+(1*1)=189
189 % 10 = 9
So 1638618-21-9 is a valid CAS Registry Number.
1638618-21-9Relevant articles and documents
Fe-Catalyzed tandem cyclization for the synthesis of 3-nitrofurans from homopropargylic alcohols and Al(NO3)3·9H2O
Wang, Ting,Jiang, Yong,Wang, Yanyan,Yan, Rulong
, p. 5232 - 5235 (2018)
Al(NO3)3·9H2O as a nitro source for the synthesis of 3-nitrofurans from homopropargylic alcohols through Fe-catalyzed tandem cyclization is described. In this transformation, the substituted nitrofurans are obtained throug
