1603967-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1603967-22-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,3,9,6 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1603967-22:
(9*1)+(8*6)+(7*0)+(6*3)+(5*9)+(4*6)+(3*7)+(2*2)+(1*2)=171
171 % 10 = 1
So 1603967-22-1 is a valid CAS Registry Number.
1603967-22-1Relevant articles and documents
Total Synthesis of (-)-Lepenine
Nishiyama, Yoshitake,Han-Ya, Yuki,Yokoshima, Satoshi,Fukuyama, Tohru
, p. 6598 - 6601 (2014)
The first asymmetric total synthesis of lepenine has been accomplished. The synthesis features a tethered intramolecular Diels-Alder reaction, an intramolecular Mannich reaction, and a Diels-Alder reaction between an ortho-quinone monoketal and ethylene,