1321900-73-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1321900-73-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,2,1,9,0 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1321900-73:
(9*1)+(8*3)+(7*2)+(6*1)+(5*9)+(4*0)+(3*0)+(2*7)+(1*3)=115
115 % 10 = 5
So 1321900-73-5 is a valid CAS Registry Number.
1321900-73-5Relevant academic research and scientific papers
Novel one-pot synthesis for 2,5-diaryl and 5-Aryl-pyridazin-3(2H)-ones
Basanagouda M.,Kulkarni, Manohar V.
experimental part, p. 2569 - 2582 (2011/08/07)
A novel method for the synthesis of 2-phenyl-5-(o-hydroxyphenyl)-pyridazin- 3(2H)-ones and 5-(o-hydroxyphenyl)-pyridazin-3(2H)-ones has been found during the reaction of 4-bromomethylcoumarins with phenylhydrazine and hydrazinehydrate, respectively, under
