289657-25-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 289657-25-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,9,6,5 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 289657-25:
(8*2)+(7*8)+(6*9)+(5*6)+(4*5)+(3*7)+(2*2)+(1*5)=206
206 % 10 = 6
So 289657-25-6 is a valid CAS Registry Number.
289657-25-6Relevant academic research and scientific papers
Enantio- and diastereoselective synthesis of all four stereoisomers of formoterol
Hett, Robert,Fang, Qun Kevin,Gao, Yun,Hong, Yaping,Butler, Hal T.,Nie, Xiaoyi,Wald, Stephen A.
, p. 1125 - 1128 (2007/10/03)
Enantioselective syntheses of all four stereoisomers of formoterol are accomplished using asymmetric catalytic borane reductions with chiral oxazaborolidines as reducing agents.
