649747-85-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 649747-85-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,9,7,4 and 7 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 649747-85:
(8*6)+(7*4)+(6*9)+(5*7)+(4*4)+(3*7)+(2*8)+(1*5)=223
223 % 10 = 3
So 649747-85-3 is a valid CAS Registry Number.
649747-85-3Relevant academic research and scientific papers
Synthesis, antiinflammatory and antibacterial activity of some new flavonoidal derivatives
Khan,Hasan
, p. 1970 - 1974 (2007/10/03)
Several new flavones/flavanones and 5′-substituted-2′-hydroxy chalcones have been synthesised through Claisen Schmidt condensation. 5-Chloromethyl-2- hydroxy acetophenone 1 on condensation with various aromatic aldehydes yields chalcones 2a and 2b, which