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98612-71-6

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98612-71-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98612-71-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,6,1 and 2 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 98612-71:
(7*9)+(6*8)+(5*6)+(4*1)+(3*2)+(2*7)+(1*1)=166
166 % 10 = 6
So 98612-71-6 is a valid CAS Registry Number.

98612-71-6Downstream Products

98612-71-6Relevant articles and documents

Transannular Ozonides of 9-Alkoxyanthracenes

Rigaudy, Jean,Chelu, Gerard,Cuong, Nguyen Kim

, p. 4474 - 4478 (2007/10/02)

Ozonation of 9-alkoxyanthracenes in methanol at -78 deg C leads to transannular ozonides 7, most of which can be isolated in crystalline form.On warming in CH2Cl2, ozonides 7 undergo around -30 deg C a decomposition with O2 release leading mainly to 10-alkoxy-9-anthrones 8.The radical character of this decomposition is established, in the case of 9-methoxy-10-methylanthracene ozonide (7e), by adding H donors such as 2,4,6-tri-tert-butylphenol or hydroquinone, which direct the process toward formation of 10-hydroperxy-10-methyl-9-anthrone (2a).

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