142143-27-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142143-27-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,1,4 and 3 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 142143-27:
(8*1)+(7*4)+(6*2)+(5*1)+(4*4)+(3*3)+(2*2)+(1*7)=89
89 % 10 = 9
So 142143-27-9 is a valid CAS Registry Number.
142143-27-9Relevant articles and documents
Asymmetric synthesis of (+)pilosinine: A formal synthesis of (+)-pilocarpine
Shapiro, Gideon,Chengzhi, Cai
, p. 2447 - 2450 (2007/10/02)
An efficient asymmetric synthesis of enantiomerically pure (+)-pilosinine achieved in 6 steps from a known chiral bromoacyloxazolidinone.