143209-69-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143209-69-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,2,0 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143209-69:
(8*1)+(7*4)+(6*3)+(5*2)+(4*0)+(3*9)+(2*6)+(1*9)=112
112 % 10 = 2
So 143209-69-2 is a valid CAS Registry Number.
143209-69-2Relevant academic research and scientific papers
Synthesis of pyrrolo[1,2-c]quinazoline derivatives
Beccalli, Egle M.,Marchesini, Alessandro,Pilati, Tullio
, p. 5359 - 5374 (2007/10/02)
Δ2-Pyrrolin-4-ones 12 and 13, prepared from 1-acyl-3-alkyl-1,3-dihydro-2H-indol-2-ones 1, via the corresponding 3-bromo-, 2 and 6, 3-azido, 7 and 8, and 3-iminophosphorane 9 and 10, were cyclized to the corresponding pyrrolo[1,2-c]quinazoline d
