Cas 134419-45-7,Benzoic acid, 2-hydroxy-3-methoxy-5-nitro-, methyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 134419-45-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,4,1 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 134419-45:
(8*1)+(7*3)+(6*4)+(5*4)+(4*1)+(3*9)+(2*4)+(1*5)=117
117 % 10 = 7
So 134419-45-7 is a valid CAS Registry Number.

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134419-45-7Relevant academic research and scientific papers

A convenient method for synthesizing modified 4-nitrophenols

Nakaike, Yumi,Kamijo, Yoshio,Mori, Satoshi,Tamura, Mina,Nishiwaki, Nagatoshi,Ariga, Masahiro

, p. 10169 - 10171 (2007/10/03)

β-Nitroenamine having a formyl group behaves as the synthetic equivalent of unstable nitromalonaldehyde upon treatment with ketones under basic conditions and leads to 2,6-disubstituted 4-nitrophenols. The present method is safer than the conventional one using sodium nitromalonaldehyde and enables the preparation of hitherto unknown nitrophenols.

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