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91759-14-7

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91759-14-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91759-14-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,5 and 9 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91759-14:
(7*9)+(6*1)+(5*7)+(4*5)+(3*9)+(2*1)+(1*4)=157
157 % 10 = 7
So 91759-14-7 is a valid CAS Registry Number.

91759-14-7Relevant articles and documents

Solvolysis of Ethenoanthracenyl Triflates. Novel Stabilized Cyclic Vinyl Cations

Ladika, Mladen,Stang, Peter J.,Schiavelli, Melvyn D.,Kowalski, Mark H.

, p. 6372 - 6375 (1984)

The solvolytic behaviot of ethenoanthracenyl (3a) and etheno-9,10-dimethylanthracenyl (3b) triflates was examined.Despite the strain inherent in these systems, 3a reacts 105 times faster than cyclohexenyl triflate and 11 times faster than the unstrained cis-2-butenyl triflate.These results are explained by an unusual aryl stabilization of the incipient vinyl cations.

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