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109986-15-4

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109986-15-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109986-15-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,8 and 6 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 109986-15:
(8*1)+(7*0)+(6*9)+(5*9)+(4*8)+(3*6)+(2*1)+(1*5)=164
164 % 10 = 4
So 109986-15-4 is a valid CAS Registry Number.

109986-15-4Relevant articles and documents

The Formation of Bridged Bicyclic 1,2,4-Trioxanes by Intramolecular Capture of β-Hydroperoxy Cations

Jefford, Charles W.,Favarger, France,Ferro, Serenella,Chambaz, Daniel,Bringhen, Alain,et al.

, p. 1778 - 1786 (2007/10/02)

The 1,4-endoperoxide, prepared from 3-(4-methylnaphth-1-yl) propanal by photo-oxygenation in CH2Cl2, gave on treatment with Amberlyst-15, 3,10b-epidioxy-2,3,4a,10b-tetrahydro-6-methyl-1H-naphthopyran in 85percent yield.Its structure was determined by X-ray crystal structure analysis.The 1,2,4-trioxane moiety is locked in a twist-boat conformation with trans fusion to the parent six-membered ring.The 1,4-endoperoxides of the methyl, butyl, and phenyl ketone analogues of the aforementioned aldehyde underwent similar acid-catalyzed rearrangement to the corresponding bridged bicyclic trioxanes in 94,47, and 48percent yelds, respectively.

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