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112811-91-3

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112811-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 112811-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,8,1 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 112811-91:
(8*1)+(7*1)+(6*2)+(5*8)+(4*1)+(3*1)+(2*9)+(1*1)=93
93 % 10 = 3
So 112811-91-3 is a valid CAS Registry Number.

112811-91-3Relevant articles and documents

A convenient synthesis of n-substituted 2,3-dihydro-3-oxoisothiazolo[5,4-b]pyridines in acidic conditions

Terauchi, Hideo,Tanitame, Akihiko,Tada, Keiko,Nishikawa, Yoshinori

, p. 1719 - 1734 (2007/10/03)

A novel and convenient synthesis of N-substituted 2,3-dihydro-3-oxoisothiazolo[5,4-b]pyridines which possess potent in vitro inhibitory activity against gastric (H+/K+)-ATPase is reported. Compared with the methods reported previously, the compounds were synthesized more readily in relatively high yields by conversion of N-substituted 2-(benzyl-, 1-phenylethyl-, and benzhydrylsulfinyl)nicotinamides (17d-l) in a diluted hydrochloric acid-methanol solution at room temperature.

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