111737-26-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111737-26-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,7,3 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 111737-26:
(8*1)+(7*1)+(6*1)+(5*7)+(4*3)+(3*7)+(2*2)+(1*6)=99
99 % 10 = 9
So 111737-26-9 is a valid CAS Registry Number.
111737-26-9Relevant articles and documents
Synthesis of Heptafulvenes and Related Seven-Membered Ring Systems from Triafulvenes
Eicher, Theophil,Abel, Manfred
, p. 542 - 547 (2007/10/02)
Triafulvenes 1 are reacted with a series of donor substituted 1,3-dienes 2 in a Diels-Alder addition to yield bicyclic methylene cyclopropanes 3.The primary Diels-Alder adducts are transformed either to 1,6-diphenyl-substituted heptafulvenes 5 or to other