130249-07-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130249-07-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,2,4 and 9 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 130249-07:
(8*1)+(7*3)+(6*0)+(5*2)+(4*4)+(3*9)+(2*0)+(1*7)=89
89 % 10 = 9
So 130249-07-9 is a valid CAS Registry Number.
130249-07-9Relevant academic research and scientific papers
Flat and Rigid Macrocycles Based on 1,4-Diphenylbutadiyne Units
Kadei, Klaus,Voegtle, Fritz
, p. 909 - 913 (2007/10/02)
(3,3')-1,4-Diphenylbutadiynophanes of type Ia,b (e.g. 1 - 4) are obtained by coupling the diethynyl derivatives 18 - 21 by means of CuCl/CuCl2.The properties of 1 - 4 (UV, NMR, charge transfer) are compared to 1,4-diphenylbutadiyne.In contrast to 1,4
