131172-75-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131172-75-3 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, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 131172-75:
(8*1)+(7*3)+(6*1)+(5*1)+(4*7)+(3*2)+(2*7)+(1*5)=93
93 % 10 = 3
So 131172-75-3 is a valid CAS Registry Number.
131172-75-3Relevant academic research and scientific papers
HYDROAMINATION OF PYRYLIUM SALTS
Reshetov, P. V.,Fedotova, O. V.,Kriven'ko, A. P.,Kharchenko, V. G.
, p. 513 - 516 (2007/10/02)
The catalytic reductive amination of pyrylium salts proceeded stereoselectively to give piperidine bases with a cis-structure.The reaction involved the formation of a pyridine intermediate; the course of the reaction depended on the structure of both the
