77407-19-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77407-19-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,0 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77407-19:
(7*7)+(6*7)+(5*4)+(4*0)+(3*7)+(2*1)+(1*9)=143
143 % 10 = 3
So 77407-19-3 is a valid CAS Registry Number.
77407-19-3Relevant articles and documents
THE INTRAMOLECULAR ? CYCLOADDITIONS OF (3-ALKENYL)CYCLOPENTADIENES
Snowden, Roger L.
, p. 97 - 100 (1981)
The intramolecular cycloadditions of four specifically functionalised (3-alkenyl)cyclopentadienes are studied; the observed regiochemistries are in agreement with the predictions of frontier orbital theory.
