219986-23-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219986-23-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,8 and 6 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 219986-23:
(8*2)+(7*1)+(6*9)+(5*9)+(4*8)+(3*6)+(2*2)+(1*3)=179
179 % 10 = 9
So 219986-23-9 is a valid CAS Registry Number.
219986-23-9Relevant academic research and scientific papers
Photochemical reactions of chiral 2,3-dihydro-4(1H)-pyridones: Asymmetric synthesis of (-)-perhydrohistrionicotoxin
Comins, Daniel L.,Zhang, Yue-Mei,Zheng, Xiaoling
, p. 2509 - 2510 (2007/10/03)
The first chiral auxiliary-mediated asymmetric synthesis of (-)-perhydrohistrionicotoxin is described.
