77670-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77670-89-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,7 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77670-89:
(7*7)+(6*7)+(5*6)+(4*7)+(3*0)+(2*8)+(1*9)=174
174 % 10 = 4
So 77670-89-4 is a valid CAS Registry Number.
77670-89-4Relevant academic research and scientific papers
THE SPIROOXIRANE ROUTE TO TRANS-FUSED γ-LACTONES
Strekowski, Lucjan,Battiste, Merle A.
, p. 279 - 282 (2007/10/02)
Convenient access to trans-fused γ-lactones is provided by sodium benzenethiolate promoted ring opening of appropriate γ,δ-spiroepoxyesters.
