136801-35-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136801-35-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,8,0 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 136801-35:
(8*1)+(7*3)+(6*6)+(5*8)+(4*0)+(3*1)+(2*3)+(1*5)=119
119 % 10 = 9
So 136801-35-9 is a valid CAS Registry Number.
136801-35-9Relevant academic research and scientific papers
A convenient synthesis of Quinazoline ring by tandem aza-Wittig reaction/electrocyclic ring closure
Rossi,Calabrese,Farma
, p. 5819 - 5834 (2007/10/02)
3,4-D-Dihydroquinazolines and Quinazolines were prepared starting from N'-aryl-N-(triphenylphosphoranilidene)-carboximidamides and aliphatic or aromatic aldehydes. The mechanism of the reaction is discussed.
