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696653-64-2

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696653-64-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 696653-64-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,6,6,5 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 696653-64:
(8*6)+(7*9)+(6*6)+(5*6)+(4*5)+(3*3)+(2*6)+(1*4)=222
222 % 10 = 2
So 696653-64-2 is a valid CAS Registry Number.

696653-64-2Upstream product

696653-64-2Relevant academic research and scientific papers

Synthesis and reactivity of 3-amino-9-methoxymethyl-7-methyl-3,4- dihydropyrido-[3′,2′:4,5]thieno[3,2-d]pyrimidin-4-ones

Kostenko,Lipunov,Kaigorodova,Konyushkin

, p. 1466 - 1476 (2008/09/20)

The reaction of acyl derivatives of ethyl 3-aminothieno[2,3-b]pyridine-2- carboxylate with hydrazine hydrate gives a series of tricyclic 3-amino-3,4-dihydropyrido[3′,2′:4,5]thieno[3,2-d]pyrimidin-4-ones containing aliphatic, aromatic, or heteroaromatic fragments at C(2). The reactions of 3-aminopyridothieno[3,2-d]pyrimidin-4-ones with aldehydes, formamide, 2,5-dimethoxytetrahydrofuran, acetic anhydride, and Raney nickel were studied.

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