289725-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 289725-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,9,7,2 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 289725-91:
(8*2)+(7*8)+(6*9)+(5*7)+(4*2)+(3*5)+(2*9)+(1*1)=203
203 % 10 = 3
So 289725-91-3 is a valid CAS Registry Number.
289725-91-3Relevant academic research and scientific papers
Regioselective synthesis of 1,3,5-triaryl-4-alkylpyrazoles: novel ligands for the estrogen receptor.
Huang,Katzenellenbogen
, p. 2833 - 2836 (2007/10/03)
[reaction: see structure] A regioselective synthesis of 4-alkyl-1,3,5-triarylpyrazoles has been developed for the preparation of unsymmetrically substituted systems of interest as ligands for the estrogen receptor.
