171617-18-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171617-18-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,6,1 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 171617-18:
(8*1)+(7*7)+(6*1)+(5*6)+(4*1)+(3*7)+(2*1)+(1*8)=128
128 % 10 = 8
So 171617-18-8 is a valid CAS Registry Number.
171617-18-8Relevant articles and documents
On the preparation and unusual reactivity of a potential difluorodienophile
Crowley,Percy,Stansfield
, p. 8233 - 8236 (1996)
Attempts to generate a difluorovinyl sulfone and to react it with cyclopentadiene were hindered by the formation of hydrofluorination products. An α-carbamoyloxy-β,β-difluoroethenyl phenyl sulfone has been prepared in high yield, but reactions with cyclop
