3989-90-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3989-90-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,8 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 3989-90:
(6*3)+(5*9)+(4*8)+(3*9)+(2*9)+(1*0)=140
140 % 10 = 0
So 3989-90-0 is a valid CAS Registry Number.
InChI:InChI=1/C18H11NO2/c20-19(21)14-7-10-16-13(11-14)6-9-17-15-4-2-1-3-12(15)5-8-18(16)17/h1-11H
3989-90-0Relevant academic research and scientific papers
Triflic acid promoted synthesis of polycyclic aromatic compounds
Li, Ang,DeSchepper, Daniel J.,Klumpp, Douglas A.
scheme or table, p. 1924 - 1927 (2009/09/05)
The triflic acid (CF3SO3H) promoted cyclizations of 2-styrylbiaryls are found to be useful for the synthesis of polycyclic aromatic compounds, including functionalized derivatives of polycyclic aromatic compounds and heterocyclic sys