73661-39-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73661-39-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,6,6 and 1 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 73661-39:
(7*7)+(6*3)+(5*6)+(4*6)+(3*1)+(2*3)+(1*9)=139
139 % 10 = 9
So 73661-39-9 is a valid CAS Registry Number.
73661-39-9Relevant academic research and scientific papers
Strained Anthraquinonophanes and Anthracenophanes
Wingen, Rainer,Voegtle, Fritz
, p. 676 - 689 (2007/10/02)
The clamped anthraquinonophane 3 and anthracenophanes 4, 5 have been synthesized.Their spectroscopic properties are compared with those of the open chained compounds 8 and 10 and the corresponding phanes (12a-15a and 16-18) with longer bridges.The clampin
