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35203-02-2

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35203-02-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 35203-02-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,5,2,0 and 3 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 35203-02:
(7*3)+(6*5)+(5*2)+(4*0)+(3*3)+(2*0)+(1*2)=72
72 % 10 = 2
So 35203-02-2 is a valid CAS Registry Number.

35203-02-2Relevant articles and documents

Revisitation of Formaldehyde Aniline Condensation. VIII. - Monomeric N-Methylene Anilines

Giumanini, Angelo G.,Verardo, Giancarlo,Polana, Marco

, p. 161 - 174 (2007/10/02)

A convenient, high yield "dry" method of synthesis of monomeric N-methyleneanilines (6a-i) and the characterization of the products by m.s., 1H- and 13C-n.m.r. and i.r. are reported, improving previous procedures and describing new compounds.It appeared that the existence of monomeric N-methyleneanilines is stricly related to the presence of enough steric hindrance to oligomerization by substituents in ortho positions.Moreover, some addition products of formaldehyde to an amine and its corresponding imines are tentatively identified on the basis of the observed mass spectrum of the whole reaction mixture.The reaction products of formaldehyde with 2,6-dimethylaniline (1a) provided an example of a mobile equilibrium between monomeric and trimeric imine.

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