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89429-29-8

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89429-29-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89429-29-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,4,2 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 89429-29:
(7*8)+(6*9)+(5*4)+(4*2)+(3*9)+(2*2)+(1*9)=178
178 % 10 = 8
So 89429-29-8 is a valid CAS Registry Number.

89429-29-8Relevant articles and documents

The Reactions of t-Butoxyl with Unsaturated Hydrocarbons: Structure and Reactivity of Allylic Radicals

Cuthbertson, Matthew J.,Rizzardo, Ezio,Solomon, David H.

, p. 1957 - 1973 (2007/10/02)

A radical trapping technique employing 1,1,3,3-tetramethylisoindolin-2-yloxyl (1) as scavenger has been used to study the reactions of t-butoxy radicals with propene, 2-methylpropene, but-1-ene, (E)- and (Z)-but-2-ene, 3-methylbut-1-ene, buta-1,3-diene and 2-methylbuta-1,3-diene.Relative rates of double bond addition and of allylic hydrogen abstraction have been measured and are discussed, as are the relative stabilities of the products formed.The allylic radicals generated in these systems react with (1) mainly by coupling at the more substituted terminus of the radical ? system.Substituent effects on this regioselectivity may be explained in terms of the electrophilicity of (1).

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