81684-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81684-57-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,8 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81684-57:
(7*8)+(6*1)+(5*6)+(4*8)+(3*4)+(2*5)+(1*7)=153
153 % 10 = 3
So 81684-57-3 is a valid CAS Registry Number.
81684-57-3Relevant academic research and scientific papers
5-NITRO-2-FURYLVINYLATION OF SUBSTITUTED BENZENE DERIVATIVES
Hrabovsky, Jan,Kovac, Jaroslav
, p. 45 - 53 (2007/10/02)
5-Nitro-2-furylvinylation of o-, m-, and p-disubstited and trisubstited benzene derivatives afforded under conditions of Friedel-Crafts condensation (E)-2-substituted 1-(5-nitro-2-furyl)ethylene.
