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4(1H)-Quinazolinethione, 2-[2-(4-nitrophenyl)ethenyl]-, is a complex organic compound with the chemical formula C13H9N3O2S. It is a derivative of quinazoline, a heterocyclic compound with a fused benzene and pyrimidine ring system. This specific compound features a quinazoline core with a thione group (a sulfur analog of a ketone), a 4-nitrophenyl group attached to the ethenyl side chain, and a 2-(4-nitrophenyl)ethenyl substituent. It is an important intermediate in the synthesis of various pharmaceuticals and agrochemicals due to its unique chemical structure and reactivity. The compound is known for its potential applications in the development of anticancer, anti-inflammatory, and antimicrobial agents, among others.

3440-53-7

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3440-53-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3440-53-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,4,4 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3440-53:
(6*3)+(5*4)+(4*4)+(3*0)+(2*5)+(1*3)=67
67 % 10 = 7
So 3440-53-7 is a valid CAS Registry Number.

3440-53-7Downstream Products

3440-53-7Relevant academic research and scientific papers

Studies on quinazolines. Part I. Annelation to the quinazoline ring utilizing amino acid esters

Wasfy, Ashraf A. F.

, p. 1349 - 1358 (2007/10/03)

The reaction of quinazoline-4(3H)-thiones 2a-d with amino acid ester hydrochlorides in boiling solvents, under the basic catalysis, afforded the corresponding substitution products (3-6)a-e in low yield. The reaction could be improved by carrying it without a solvent yielding imidazo[1,2-c]- and pyrimido[1,2-c]quinazolines (7-10)a-e. The antibacterial and antifungal activities of the prepared compounds were tested.

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