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231956-11-9

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231956-11-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 231956-11-9 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 1 respectively.
Calculate Digit Verification of CAS Registry Number 231956-11:
(8*2)+(7*3)+(6*1)+(5*9)+(4*5)+(3*6)+(2*1)+(1*1)=129
129 % 10 = 9
So 231956-11-9 is a valid CAS Registry Number.

231956-11-9Relevant articles and documents

Synthesis and spectral properties of 5-methylthio-4H-1-(p-substituted- phenyl)-3a-(p-substituted-phenyl)-9-([(m-; and p-substituted)-phenoxyl-3a,4- dihydro[1,2,4]oxadiazolo[4,5-a][1,5]benzodiazepines

Cortes, Eduardo Cortes,Mellado, Olivia Garcia,Cruz, Elide Hernandez

, p. 477 - 480 (1999)

The preparation of eight novel substituted [1,2,4]oxadiazolo[4,5- a][1,5]benzodiazepines which have potentially useful pharmacological properties; by 1,3-cycloaddition of benzonitrile oxides, generated in situ from benzohydroxamoyl chloride and triethylamine, to 1,5-benzodiazepine derivatives is described. The structure of all products was corroborated by ir, 1H-nmr, 13C-nmr and ms.

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