81153-41-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81153-41-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,5 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81153-41:
(7*8)+(6*1)+(5*1)+(4*5)+(3*3)+(2*4)+(1*1)=105
105 % 10 = 5
So 81153-41-5 is a valid CAS Registry Number.
81153-41-5Relevant academic research and scientific papers
Tricyclic Heteroaromatic Ring Systems III. Synthesis of 1H,6H-Dipyrazolopyridin-3-ones
Khan, Misbahul A.,Pedrotti, Francisco
, p. 123 - 128 (2007/10/02)
The reaction of hydrazines with substituted ethyl 4-chloro-1H-pyrazolopyridine-3-carboxylates leads to the formation of 1H,6H-dipyrazolopyridin-3-ones. - Keywords: Pyrazolopyridines; Ring closures
