209852-02-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209852-02-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,8,5 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 209852-02:
(8*2)+(7*0)+(6*9)+(5*8)+(4*5)+(3*2)+(2*0)+(1*2)=138
138 % 10 = 8
So 209852-02-8 is a valid CAS Registry Number.
209852-02-8Relevant articles and documents
First example of samarium diiodide-promoted sequential cyclization and ring-expansion reactions of α-bromomethyl cyclic β-keto esters to homologated γ-keto esters
Hasegawa, Eietsu,Kitazume, Takashi,Suzuki, Kimiko,Tosaka, Emi
, p. 4059 - 4062 (1998)
SmI2 reductions of some aromatic as well as aliphatic α-bromomethyl cyclic β-keto esters produced one-carbon homologated γ-keto esters in modest to good yields.
