79427-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79427-81-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,4,2 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 79427-81:
(7*7)+(6*9)+(5*4)+(4*2)+(3*7)+(2*8)+(1*1)=169
169 % 10 = 9
So 79427-81-9 is a valid CAS Registry Number.
79427-81-9Relevant articles and documents
INTERCYCLIC ?2+?2+?2>-AND ?2+?2>-CYCLOADDITION REACTIONS IN STERICALLY FIXED NORBORNADIENE-/QUADRICYCLANE-SYSTEMS
Prinzbach, Horst,Weidmann, Klaus,Trah, Stephan,Knothe, Lothar
, p. 2541 - 2544 (1981)
The stereoelectronic prerequisites for unusual "zippper-type" ?2+?2+?2>- and ?2+?2>-reaction sequences, e.g. in the still unknown C7H6-pentamers (1)/(2), are being studied using model compounds with