126644-71-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126644-71-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,6,4 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 126644-71:
(8*1)+(7*2)+(6*6)+(5*6)+(4*4)+(3*4)+(2*7)+(1*1)=131
131 % 10 = 1
So 126644-71-1 is a valid CAS Registry Number.
126644-71-1Relevant articles and documents
Directed Lithiation of Chlorobenzenes. Regioselectivity and Application to a Short Synthesis of Benzocyclobutenes
Iwao, Masatomo
, p. 3622 - 3627 (1990)
Chlorobenzene and its OMe, OSiMe2-t-Bu, and Cl derivatives 1 were lithiated with high regioselectivity ortho to chlorine by treatment with sec-BuLi in THF at -105 deg C without complications due to benzyne formation.The lithio species thus generated under