89005-08-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89005-08-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,0,0 and 5 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 89005-08:
(7*8)+(6*9)+(5*0)+(4*0)+(3*5)+(2*0)+(1*8)=133
133 % 10 = 3
So 89005-08-3 is a valid CAS Registry Number.
89005-08-3Relevant articles and documents
A Simple Method of Generating Naphthofuran and Naphthofuran
Smith, James G.,Dibble, Peter W.,Sandborn, Richard E.
, p. 1197 - 1198 (2007/10/02)
Naphthofuran and the novel naphthofuran have been generated from 2-(hydroxymethyl)-1-naphthaldehyde and 3-(hydroxymethyl)-2-naphthaldehyde, respectively, and trapped in Diels-Alder reactions with maleic anhydride.