142143-25-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142143-25-7 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 5 respectively.
Calculate Digit Verification of CAS Registry Number 142143-25:
(8*1)+(7*4)+(6*2)+(5*1)+(4*4)+(3*3)+(2*2)+(1*5)=87
87 % 10 = 7
So 142143-25-7 is a valid CAS Registry Number.
142143-25-7Relevant academic research and scientific papers
Shapiro, Gideon,Chengzhi, Cai
, p. 2447 - 2450 (1992)
An efficient asymmetric synthesis of enantiomerically pure (+)-pilosinine achieved in 6 steps from a known chiral bromoacyloxazolidinone.
