189952-70-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189952-70-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,9,5 and 2 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 189952-70:
(8*1)+(7*8)+(6*9)+(5*9)+(4*5)+(3*2)+(2*7)+(1*0)=203
203 % 10 = 3
So 189952-70-3 is a valid CAS Registry Number.
189952-70-3Relevant academic research and scientific papers
First enantiocontrolled syntheses of (+)-uleine and (+)-dasycarpidone
Saito, Masanori,Kawamura, Mitsuhiro,Hiroya, Kou,Ogasawara, Kunio
, p. 765 - 766 (2007/10/03)
Stereocontrolled syntheses of (+)-uleine and (+)-dasycarpidone are achieved for the first time in an enantiocontrolled way starting from (+)-norcamphor.
