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28096-13-1

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28096-13-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28096-13-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,0,9 and 6 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 28096-13:
(7*2)+(6*8)+(5*0)+(4*9)+(3*6)+(2*1)+(1*3)=121
121 % 10 = 1
So 28096-13-1 is a valid CAS Registry Number.

28096-13-1Relevant articles and documents

Contrasting behavior of pentafluorophenoxyacetone and pentafluorobenzyloxyacetone in electron impact and electron capture mass spectrometry

Xu, Linxiao,Huang, Yulin,Giese, Roger W.

, p. 615 - 620 (1998)

Towards the goal of finding new ketone electrophores suitable as molecular labels for electrophoric release tags, pentafluorophenuxyacetone (1) and pentafluorbenzyloxyacetone (2) were prepared. Both ketones were evaluated by electron capture (EC) and electron impact (EI) modes of mass spectrometry (MS). By EC-MS, 1 nearly gave a single ion (as desired), whereas 2 gave many ions. This behavior was completely reversed in EI-MS. To account for certain ion fragments in the EC mass spectrum of 2, an anion radical MCLafferty-type rearrangement and loss of a carbene neutral were postulated. Electron impact of 1 gave an abundant ion at m/z 117 (C5F3+), which was suggested to be a diyne cation.

Molecular analytical release tags and their use in chemical analysis

-

, (2008/06/13)

A release tag reagent suitable for use in the chemical analysis of a substance to be detected, which substance contains reactive groups, such as for, but not limited to gas phase detection groups, which reagent comprises three covalently bonded groups: a

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