127237-78-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 127237-78-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,2,3 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 127237-78:
(8*1)+(7*2)+(6*7)+(5*2)+(4*3)+(3*7)+(2*7)+(1*8)=129
129 % 10 = 9
So 127237-78-9 is a valid CAS Registry Number.
127237-78-9Relevant articles and documents
INTRAMOLECULAR CYCLIZATION REACTIONS OF PYRIMIDINIUM CATIONS
Frissen, A. E.,Geurtsen, G.,Marcelis, A. T. M.,Plas, H. C. van der
, p. 595 - 606 (1990)
N-Alkylpyrimidinium cations carrying a dienophilic side-chain at the 2- or 5-position undergo intramolecular inverse electron demand Diels-Alder reactions into the corresponding annelated pyridine derivatives under considerably milder conditions than the