597558-93-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 597558-93-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,9,7,5,5 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 597558-93:
(8*5)+(7*9)+(6*7)+(5*5)+(4*5)+(3*8)+(2*9)+(1*3)=235
235 % 10 = 5
So 597558-93-5 is a valid CAS Registry Number.
597558-93-5Relevant articles and documents
A convenient synthesis of 2-functionalized pyrrolo[2,3-d]pyrido[1,2-a]pyrimidines
Zhang, Yuchi,Kawashima, Keisuke,Noguchi, Michihiko
, p. 181 - 184 (2008/02/02)
The thermal reaction of N-benzyl-N-{3-formyl-4-oxo-4H-pyrido[1,2-a]-pyrimidin-2-yl}amino esters (1) provides 2-substituted pyrrolo[2.3-d]pyrido[1,2-a]-pyrimidin-4(1H)-ones (2) effectively. Therein, the lactonization and consecutive decarboxylation of the
