231289-65-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 231289-65-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,1,2,8 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 231289-65:
(8*2)+(7*3)+(6*1)+(5*2)+(4*8)+(3*9)+(2*6)+(1*5)=129
129 % 10 = 9
So 231289-65-9 is a valid CAS Registry Number.
231289-65-9Relevant academic research and scientific papers
An expedient synthesis of 9-keto-2-methyl-5-(dimethoxyphenyl)morphans
Linders, Joannes T. M.,Flippen-Anderson, Judith L.,George, Clifford F.,Rice, Kenner C.
, p. 3905 - 3908 (2007/10/03)
An expedient synthesis of ortho-methoxy substituted 9-keto-5- phenylmorphans has been developed, featuring a Thorpe-Zieger cyclization to construct the substituted 2-phenylcyclohexanone intermediate.
