39020-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39020-72-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,0,2 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 39020-72:
(7*3)+(6*9)+(5*0)+(4*2)+(3*0)+(2*7)+(1*2)=99
99 % 10 = 9
So 39020-72-9 is a valid CAS Registry Number.
39020-72-9Relevant academic research and scientific papers
Synthesis of dl-Shyobunone
Vig, O. P.,Sharma, M. L.,Sethi, A. S.,Sharma, S. D.
, p. 176 - 177 (2007/10/02)
Shyobunone (I) has been synthesised starting from piperitone (II).The ketone (II) on reaction with divinyllithium cuprate produces stereospecifically the saturated ketone (III) in which the ketone function is masked as the ethylene ketal to give 1,1-ethyl
