256491-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256491-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,4,9 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 256491-91:
(8*2)+(7*5)+(6*6)+(5*4)+(4*9)+(3*1)+(2*9)+(1*1)=165
165 % 10 = 5
So 256491-91-5 is a valid CAS Registry Number.
256491-91-5Relevant academic research and scientific papers
Cyclohexenone carboxylates. A versatile source for fused isoxazoles and pyrazoles
Padmavathi,Sharmila,Balaiah,Somasekhar Reddy,Bhaskar Reddy
, p. 2119 - 2126 (2007/10/03)
The 6-carbethoxy-3,5-diarylcyclohex-2-enone (1) was subjected to condensation and 1,3-dipolar cycloaddition reactions to get fused isoxazole and pyrazole derivatives.
