131172-47-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131172-47-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,1,7 and 2 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 131172-47:
(8*1)+(7*3)+(6*1)+(5*1)+(4*7)+(3*2)+(2*4)+(1*7)=89
89 % 10 = 9
So 131172-47-9 is a valid CAS Registry Number.
131172-47-9Relevant academic research and scientific papers
SYNTHESIS OF AZOXINDOLES
Krichevskii, E. S.,Granik, V. G.
, p. 525 - 527 (2007/10/02)
Heating N-substituted 2-methyl-3-phenyl-5-nitroindoles in methanol with excess base yields the corresponding azoxindoles.Under the same conditions 2-methyl-5-nitroindole is converted to bis(2-methyl-5-nitroindol-3-yl)methane.Reaction of 1,2-dimethyl-3-for
