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1221176-99-3

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1221176-99-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1221176-99-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,1,1,7 and 6 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1221176-99:
(9*1)+(8*2)+(7*2)+(6*1)+(5*1)+(4*7)+(3*6)+(2*9)+(1*9)=123
123 % 10 = 3
So 1221176-99-3 is a valid CAS Registry Number.

1221176-99-3Downstream Products

1221176-99-3Relevant articles and documents

Facile method for the combinatorial synthesis of 2,2-Disubstituted Quinazolin-4(1 H)-one derivatives catalyzed by iodine in ionic liquids

Wang, Xiang-Shan,Yang, Ke,Zhou, Jie,Tu, Shu-Jiang

scheme or table, p. 417 - 421 (2010/09/05)

A mild and facile method for the combinatorial synthesis of quinazolin-4-(1H)-one derivatives, containing simple 2,2-disubstituted quinazolin-4-(1H)-ones, spirocyclic quinazolin-4-(1H)-ones, spiro-heterocyclic quinazolin-4-(1H)-ones, and dispirocyclic quinazolin-4-(1H)-ones, is described, which results in high yields by using ionic liquids as green media. The method involves the reaction of 2-aminobenzamides with various ketones catalyzed by iodine and provides new quinazolin-4-(1H)-one library for biomedical screening.

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