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137743-57-8

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137743-57-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137743-57-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,7,4 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 137743-57:
(8*1)+(7*3)+(6*7)+(5*7)+(4*4)+(3*3)+(2*5)+(1*7)=148
148 % 10 = 8
So 137743-57-8 is a valid CAS Registry Number.

137743-57-8Downstream Products

137743-57-8Relevant articles and documents

Oxiranylcarbinyl radicals from allyloxyl radical cyclization: Characterization and kinetic information via ESR spectroscopy

Grossi, Loris,Strazzari, Samantha,Gilbert, Bruce C.,Whitwood, Adrian C.

, p. 8366 - 8372 (2007/10/03)

An ESR spin-trapping technique has been used for the detection of oxiranylcarbinyl radicals as discrete reaction intermediates, formed via cyclization of allyloxyl radicals. The latter were obtained by photolysis of the corresponding nitrites, which were generated directly via an exchange reaction between the appropriate allylic alcohols and tert-butyl nitrite (which also acts as the spin-trap). Experiments have also been conducted with the spin-trap 2,4,6-tribromonitrosobenzene, which has allowed a study to be made of the competition between ring closure and β-scission of a variety of allyloxyl species.

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