1440947-69-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1440947-69-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,0,9,4 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1440947-69:
(9*1)+(8*4)+(7*4)+(6*0)+(5*9)+(4*4)+(3*7)+(2*6)+(1*9)=172
172 % 10 = 2
So 1440947-69-2 is a valid CAS Registry Number.
1440947-69-2Relevant articles and documents
Total Synthesis of Codeine
Li, Qilin,Zhang, Hongbin
, p. 16379 - 16382 (2015)
In this paper, a new strategy towards the synthesis of codeine and morphine is reported. This new approach features a cascade cyclization to construct the dihydrofuran ring, and an intramolecular palladium catalyzed C-H olefination of unactivated aliphatic alkene to install the morphinan ring system.