172515-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172515-98-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,5,1 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 172515-98:
(8*1)+(7*7)+(6*2)+(5*5)+(4*1)+(3*5)+(2*9)+(1*8)=139
139 % 10 = 9
So 172515-98-9 is a valid CAS Registry Number.
172515-98-9Relevant academic research and scientific papers
Total synthesis of vibsanol, a benzofuran-type lignan
Sakai, Atsushi,Aoyama, Toyohiko,Shioiri, Takayuki
, p. 4211 - 4214 (2007/10/03)
Vibsanol (1), a benzofuran-type lignan isolated from the wood of Viburnum awabuki (Caprifoliaceae), was synthesized by the tandem cyclization of o-tert-butyldimethylsiloxydiarylalkyne with tetrabutylammonium fluoride and excess paraformaldehyde as the key step.
