200137-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 200137-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,1,3 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 200137-57:
(8*2)+(7*0)+(6*0)+(5*1)+(4*3)+(3*7)+(2*5)+(1*7)=71
71 % 10 = 1
So 200137-57-1 is a valid CAS Registry Number.
200137-57-1Relevant articles and documents
Synthesis of 1-aryl-2-vinyl cyclopropanes by intramolecular carbolithiation
Krief, Alain,Couty, Francois
, p. 8085 - 8088 (1997)
Benzylselenides bearing a γ-alkenyl-ε-sulfonyloxy side chain react with butyllithiums to produce, via the corresponding benzyllithiums, 1-aryl-2-vinyl cyclopropanes.
