117267-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117267-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,2,6 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 117267-31:
(8*1)+(7*1)+(6*7)+(5*2)+(4*6)+(3*7)+(2*3)+(1*1)=119
119 % 10 = 9
So 117267-31-9 is a valid CAS Registry Number.
117267-31-9Relevant academic research and scientific papers
Cyclophanes. I.Preparations and Conformational Properties of Dioxazolo2>metacyclophane and Related Compounds
Sasaki, Hideaki,Kitagawa, Tokujiro
, p. 4747 - 4756 (2007/10/02)
The one-pot coupling reactions of bis(2-isocyano-2-tosylethyl)benzenes (5) with phthalaldehydes (11) afforded dioxazolo2>cyclophanes (12a,12d,12e,12f,and 12h), bis(naphth-oxazol-4-yl)benzenes (13a-c), and tetraoxazolo4>par
