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494801-98-8

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494801-98-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 494801-98-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,4,8,0 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 494801-98:
(8*4)+(7*9)+(6*4)+(5*8)+(4*0)+(3*1)+(2*9)+(1*8)=188
188 % 10 = 8
So 494801-98-8 is a valid CAS Registry Number.

494801-98-8Upstream product

494801-98-8Downstream Products

494801-98-8Relevant articles and documents

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

Wasfy, Ashraf A. F.

, p. 1349 - 1358 (2002)

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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