51940-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51940-71-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,9,4 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 51940-71:
(7*5)+(6*1)+(5*9)+(4*4)+(3*0)+(2*7)+(1*1)=117
117 % 10 = 7
So 51940-71-7 is a valid CAS Registry Number.
51940-71-7Relevant academic research and scientific papers
Synthesis and Reactions of 4,6,7,8-Tetrahydro-5(1H)-cinnolinones
Nagarajan, K.,Shah, R. K.,Shenoy, S. J.
, p. 697 - 708 (2007/10/02)
Phenacyldimedone, acetonyldimedone and analogues of general structure 1 undergo reaction with hydrazine, alkylhydrazine and phenyl- and 4-nitrophenyl-hydrazines to form 4,6,7,8-tetrahydro-5(1H)-cinnolinones (2) while 1b and 2,4-dinitrophenylhydrazine affo
