77116-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77116-89-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,1 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77116-89:
(7*7)+(6*7)+(5*1)+(4*1)+(3*6)+(2*8)+(1*9)=143
143 % 10 = 3
So 77116-89-3 is a valid CAS Registry Number.
77116-89-3Relevant academic research and scientific papers
Syntheses of Furano Compounds. Part XLV Syntheses of 1-Oxo-1H-BenzoFuroIndenoPyrans and Nitrogen Analogues
Chatterjea, J. N.,Sahai, Radhika Pati
, p. 1163 - 1165 (2007/10/02)
It is shown that cyclisations of α-benzyl-2-carboxybenzo-furan-3-acetic acids lead to formation of the corresponding 1-oxo-1H-benzofuroindenopyrans.Some reactions of these pyrones have been studied.
