681280-68-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 681280-68-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,1,2,8 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 681280-68:
(8*6)+(7*8)+(6*1)+(5*2)+(4*8)+(3*0)+(2*6)+(1*8)=172
172 % 10 = 2
So 681280-68-2 is a valid CAS Registry Number.
681280-68-2Relevant academic research and scientific papers
Enantioselective Synthesis of (-)-Gilbertine via a Cationic Cascade Cyclization
Jiricek, Jan,Blechert, Siegfried
, p. 3534 - 3538 (2007/10/03)
Described is the first enantioselective synthesis of (-)-gilbertine (2), a member of the uleine-type family, and the determination of the absolute configuration of this natural product is reported. The key step employs a cationic cascade reaction for a te
