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231956-19-7

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231956-19-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 231956-19-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,1,9,5 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 231956-19:
(8*2)+(7*3)+(6*1)+(5*9)+(4*5)+(3*6)+(2*1)+(1*9)=137
137 % 10 = 7
So 231956-19-7 is a valid CAS Registry Number.

231956-19-7Downstream Products

231956-19-7Relevant articles and documents

Synthesis and spectral properties of 2-methylthio-3H-7-[(o-; m- and p-substituted)phenoxy]-4-(p-substituted-phenyl)-[1,5]benzodiazepines

Cortes, Eduardo Cortes,Romero, Cristina A. Cortes,Mellado, Olivia Garcia

, p. 1321 - 1324 (2007/10/03)

A series of eleven new 2-methylthio-3H-7-[(o-; m- and p-substituted) phenoxy]-4-(p-substituted-phenyl)-[1,5]benzodiazepines, which have potentially useful pharmacological activities, has been synthesized by condensing the 4-[(o-; m- and p-R1)phenoxy]-1,2-phenylendiamines with 3,3-dimercapto-l-(p-R2-phenyl)-2-propen-1-one. Afterward the 1H-[1,5]benzodiazepine-2-thiones obtained were treated with sodium hydride and methyl iodide. The structure of all products was corroborated by ir, 1H nmr, 13C nmr and ms.

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