136281-46-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136281-46-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,2,8 and 1 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 136281-46:
(8*1)+(7*3)+(6*6)+(5*2)+(4*8)+(3*1)+(2*4)+(1*6)=124
124 % 10 = 4
So 136281-46-4 is a valid CAS Registry Number.
136281-46-4Relevant academic research and scientific papers
PYRIDAZINE DERIVATIVES AND RELATED COMPOUNDS. PART 5. PYRAZOLOPYRIDAZINE: SYNTHESIS AND SOME REACTIONS
Deeb, Ali,Bayoumy, Besher,Essawy, Abd El-Naby,Fikry, Rida
, p. 895 - 900 (2007/10/02)
This paper decsribes the synthesis of three pyrimidopyrazolopyridazines (6,7 and 9) starting from 3-aminopyridazine (1).Pyrimidopyrimidopyrazolopyridazine derivative (8) was obtained by condensing 7a w
