117644-93-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117644-93-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,6,4 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 117644-93:
(8*1)+(7*1)+(6*7)+(5*6)+(4*4)+(3*4)+(2*9)+(1*3)=136
136 % 10 = 6
So 117644-93-6 is a valid CAS Registry Number.
117644-93-6Relevant articles and documents
Regioselective formation of 4-isoxazolines from n-aryl nitrones and alkynes
Libuori,Ottana,Romeo,Sindona,Uccella
, p. 1247 - 1253 (1988)
4-Regioisomeric 4-isoxazolines are selectively formed by 1,3-dipolar cycloaddition of N-arylnitrones to substituted alkynes. The reactivity and regioselectivity of the addition process are interpreted by the application of FMO principles. Secondary orbita
