853660-90-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 853660-90-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,3,6,6 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 853660-90:
(8*8)+(7*5)+(6*3)+(5*6)+(4*6)+(3*0)+(2*9)+(1*0)=189
189 % 10 = 9
So 853660-90-9 is a valid CAS Registry Number.
853660-90-9Relevant academic research and scientific papers
Synthesis of 2(5H)-furanones via oxidative ring expansion of 4-hydroxy-2-cyclobutenones
Verniest, Guido,De Kimpe, Norbert
, p. 947 - 950 (2007/10/03)
A new method to reduce cyclobutenediones towards 4-hydroxy-2-cyclobutenones was established. The latter compounds gave rise to new 5-halo-2(5H)-furanones by reaction with halogenating agents via a cationic ring-opening-ring-closure mechanism.
