208840-41-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 208840-41-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,8,4 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 208840-41:
(8*2)+(7*0)+(6*8)+(5*8)+(4*4)+(3*0)+(2*4)+(1*1)=129
129 % 10 = 9
So 208840-41-9 is a valid CAS Registry Number.
208840-41-9Relevant academic research and scientific papers
The substituent effect on stereoselective reductive lithiation of 4,5-disubstituted 2-phenylthiooxolane
Amano, Seiji,Fujiwara, Kenshu,Murai, Akio
, p. 409 - 410 (2007/10/03)
In the reductive lithiation of 2-phenylthiooxolane system, the coexistence of the substituents at C2 and C3 with cis-configuration was found to increase the ratio of 2,5-trans-2-lithiooxolane to 2,5-cis derivative.
