420838-23-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 420838-23-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,0,8,3 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 420838-23:
(8*4)+(7*2)+(6*0)+(5*8)+(4*3)+(3*8)+(2*2)+(1*3)=129
129 % 10 = 9
So 420838-23-9 is a valid CAS Registry Number.
420838-23-9Relevant academic research and scientific papers
Facile and highly enantioselective synthesis of axially chiral biaryls by enzymatic desymmetrization
Matsumoto,Konegawa,Nakamura,Suzuki
, p. 122 - 124 (2007/10/03)
The axially chiral biaryls 2 were obtained in high enantioselectivity by desymmetrization of the σ-symmetric biaryl diacetates 1 by lipase-catalyzed hydrolysis.
