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7304-92-9

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7304-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7304-92-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,3,0 and 4 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 7304-92:
(6*7)+(5*3)+(4*0)+(3*4)+(2*9)+(1*2)=89
89 % 10 = 9
So 7304-92-9 is a valid CAS Registry Number.

7304-92-9Relevant articles and documents

Synthesis and Properties of Dinitromethylated Arenes. Reinvestigation of the Ponzio Reaction

Suzuku, Hitomi,Takaoka, Hiroshi,Yamamoto, Hidetoshi,Ogawa, Takuji

, p. 2927 - 2932 (2007/10/02)

Several title compounds have been prepared by the modified Ponzio procedure and their IR, 1 H and 13 C NMR data are presented.In some cases trinitromethylated arenes were obtained as a by-product.Oxidative cleavage to parent aldehydes and oxidation to carboxylic acids were the major competing reactions. 9-Anthracenecarbaldehyde oxime and 10-methyl-9-anthracenecarbaldehyde oxime reacted with nitrogen dioxide in an unexpected way, giving 10-nitro-9-anthracenecarbonitrile oxide and 10-methyl-10-nitro-9-anthrone as the respective main products.Nitration of (dinitromethyl)benzene has also been examined under various conditions.

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