89997-04-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89997-04-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,9 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 89997-04:
(7*8)+(6*9)+(5*9)+(4*9)+(3*7)+(2*0)+(1*4)=216
216 % 10 = 6
So 89997-04-6 is a valid CAS Registry Number.
89997-04-6Relevant academic research and scientific papers
YLIDE ANALOGUES OF FULVALENES. A STEVENS REARRANGEMENT OF A PHOSPHONIUM YLIDE.
Gilheany, Declan G.,Walker, Brian J.
, p. 183 - 186 (2007/10/02)
Fulvalene-ylides have been synthesised.The pentafulvalene ylide analogue (8) provides the first Stevens rearrangement of a phosphonium ylide and, through reaction with DMAD, a novel 1-phosphabicyclooctratriene ylide.
