99877-27-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99877-27-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,7 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 99877-27:
(7*9)+(6*9)+(5*8)+(4*7)+(3*7)+(2*2)+(1*7)=217
217 % 10 = 7
So 99877-27-7 is a valid CAS Registry Number.
99877-27-7Relevant academic research and scientific papers
Efficient aromatization of 4,5-dihydro-3(2H)-pyridazinones substituted at 5 position by using anhydrous copper (II) chloride
Sotelo, Eddy,Ravina, Enrique
, p. 1 - 7 (2007/10/03)
An efficient conversion of 5-substituted-4,5-dihydro-3(2H)-pyridazinones into their corresponding dehydrogenated derivatives was achieved by treatment with anhydrous copper(II) chloride in acetonitrile.
