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"2,5,8,11,14,17,20,23-Octaoxahexacos-25-ene" is a complex organic compound characterized by its unique molecular structure. It consists of a 26-carbon chain with eight ether groups (-O-) interspersed along its length, creating a series of oxygen-bridged segments. The compound is an alkene, indicating the presence of a carbon-carbon double bond, which in this case is located at the 25th carbon position. This specific arrangement of atoms and functional groups gives the molecule distinct chemical properties and potential applications in various fields, such as polymer chemistry or as a precursor in the synthesis of more complex molecules.

3205-10-5

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3205-10-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3205-10-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,0 and 5 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 3205-10:
(6*3)+(5*2)+(4*0)+(3*5)+(2*1)+(1*0)=45
45 % 10 = 5
So 3205-10-5 is a valid CAS Registry Number.

3205-10-5Downstream Products

3205-10-5Relevant academic research and scientific papers

Quantification of grafted poly(ethylene glycol)-silanes on silicon by time-of-flight secondary ion mass spectrometry

Norrman,Papra,Kamounah,Gadegaard,Larsen

, p. 699 - 708 (2002)

Silicon grafted monodisperse poly(ethylene glycol) (PEG) silanes with various PEG chain lengths and mixtures of these were systematically analyzed with static time-of-flight secondary ion mass spectrometry (TOF-SIMS). The mass spectra show differences in the various relative signal intensities, an observation that was used to elucidate important aspects of the grafting process. The relationship between PEG-silane fragment ion abundances and Si+ ion abundances were used to (i) qualitatively describe layer thicknesses of grafted mixtures of PEG-silanes on silicon, (ii) construct a calibration curve from which PEG chain length (or molecular mass) can be determined and (iii) quantitatively determine surface mixture compositions of grafted monodisperse PEG-silanes of different chain lengths (3, 7 and 11 PEG units). The results suggest that discrimination does take place in the adsorption process. The PEG-silane with the shorter PEG chain is discriminated for mixtures containing PEG3-silane, whereas the PEG-silane with the longer PEG chain is discriminated in PEG7/PEG11-silane mixtures. The origin of this difference in adsorption behavior is not well understood. Aspects of the grafting process and the TOF-SIMS analyses are discussed. Copyrigh

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