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118081-79-1

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118081-79-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118081-79-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,0,8 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 118081-79:
(8*1)+(7*1)+(6*8)+(5*0)+(4*8)+(3*1)+(2*7)+(1*9)=121
121 % 10 = 1
So 118081-79-1 is a valid CAS Registry Number.

118081-79-1Relevant articles and documents

Nucleophilic substitution accompanying carbon-carbon bond cleavage assisted by a nitro group

Nakaike, Yumi,Taba, Noriko,Itoh, Shinobu,Tobe, Yoshito,Nishiwaki, Nagatoshi,Ariga, Masahiro

, p. 2413 - 2417 (2007)

A 2-nitrated 3-oxoester reacted with amines or alcohols to afford unsymmetrical malonic acid derivatives as a result of nucleophilic substitution accompanying C-C bond cleavage. The 2-nitrated 3-oxoester easily formed ammonium salts with amines. When the amine is liberated from the salt under equilibrium, nucleophilic amine and electrophilic keto ester locate close to each other. This intimate pair effect causes a pseudo intramolecular reaction to occur, giving rise to effective substitution under mild conditions.

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