111737-33-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111737-33-8 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, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 111737-33:
(8*1)+(7*1)+(6*1)+(5*7)+(4*3)+(3*7)+(2*3)+(1*3)=98
98 % 10 = 8
So 111737-33-8 is a valid CAS Registry Number.
111737-33-8Relevant 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
