89407-29-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89407-29-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,4,0 and 7 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 89407-29:
(7*8)+(6*9)+(5*4)+(4*0)+(3*7)+(2*2)+(1*9)=164
164 % 10 = 4
So 89407-29-4 is a valid CAS Registry Number.
89407-29-4Relevant academic research and scientific papers
A Practical Synthesis of 2-Carbonylbenzothiophenes
Hsiao, Chi-Nung,Bhagavatula, Lakshmi,Pariza, Richard J.
, p. 1687 - 1695 (2007/10/02)
2-Mercaptobenzoic acid was reduced, alkylated on sulfur atom with various α-halocarbonyl derivatives and then oxidized to 2-thioalkoxybenzaldehydes which underwent intramolecular condensation to give 2-carbonylbenzothiophenes in good yields.
