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25500-50-9

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25500-50-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25500-50-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,5,0 and 0 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 25500-50:
(7*2)+(6*5)+(5*5)+(4*0)+(3*0)+(2*5)+(1*0)=79
79 % 10 = 9
So 25500-50-9 is a valid CAS Registry Number.

25500-50-9Downstream Products

25500-50-9Relevant articles and documents

Rearrangements of Cycloalkenyl Aryl Ethers

T?rincsi, Mercedesz,Nagy, Melinda,Bihari, Tamás,Stirling, András,Kolonits, Pál,Novak, Lajos

, (2016/05/24)

Rearrangement reactions of cycloalkenyl phenol and naphthyl ethers and the acid-catalyzed cyclization of the resulting product were investigated. Claisen rearrangement afforded 2-substituted phenol and naphthol derivatives. Combined Claisen and Cope rearrangement resulted in the formation of 4-substituted phenol and naphthol derivatives. In the case of cycloocthylphenyl ether the consecutive Claisen and Cope rearrangements were followed by an alkyl migration. The mechanism of this novel rearrangement reaction is also discussed.

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