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89618-93-9

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89618-93-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89618-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,6,1 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89618-93:
(7*8)+(6*9)+(5*6)+(4*1)+(3*8)+(2*9)+(1*3)=189
189 % 10 = 9
So 89618-93-9 is a valid CAS Registry Number.

89618-93-9Relevant articles and documents

Effect of the α-Trifluoromethyl Moiety on the Solvolysis of Allylic Sulfonates

Gassman, Paul G.,Harrington, Clinton K.

, p. 2258 - 2273 (2007/10/02)

A series of allylic sulfonates bearing aryl substituents on the 2-position and/or trifluoromethyl groups on the 1- and/or 3-positions has been studied under solvolytic conditions in 2,2,2-trifluoroethanol.Nonarylated 1,3-di(trifluoromethyl)-substituted allylic sulfonates did not solvolyze in a conventional manner but instead gave products diagnostic of a complex isomerization-cleavage process.Mono(trifluoromethyl)-substituted allylic sulfonates solvolyzed by normal paths to give kH/kCF3 ratios of 2E6 and 4E4 for the substitution at the 1- and 3-positions, respectively.No evidence for 1,3-? interactions was discerned.

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