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32021-54-8

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32021-54-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 32021-54-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,0,2 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 32021-54:
(7*3)+(6*2)+(5*0)+(4*2)+(3*1)+(2*5)+(1*4)=58
58 % 10 = 8
So 32021-54-8 is a valid CAS Registry Number.

32021-54-8Relevant articles and documents

A convenient method for synthesizing modified 4-nitrophenols

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

, p. 10169 - 10171 (2005)

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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