Cas 1344089-53-7,C19H21Br2NO2S

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Check Digit Verification of cas no

The CAS Registry Mumber 1344089-53-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,4,4,0,8 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1344089-53:
(9*1)+(8*3)+(7*4)+(6*4)+(5*0)+(4*8)+(3*9)+(2*5)+(1*3)=157
157 % 10 = 7
So 1344089-53-7 is a valid CAS Registry Number.

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1344089-53-7Relevant academic research and scientific papers

Co(I)-versus Ru(II)-Catalyzed [2+2+2] cycloadditions involving alkynyl halides

Iannazzo, Laura,Kotera, Naoko,Malacria, Max,Aubert, Corinne,Gandon, Vincent

supporting information; experimental part, p. 3906 - 3908 (2011/12/02)

Alkynyl chlorides, bromides, and iodides have been tested as [2 + 2 + 2] cycloaddition partners using CpCo(CO)(dimethylfumarate) and Cp*Ru(cod)Cl as precatalysts. A series of cocyclizations between diynyl dihalides and alkynes, as well as intramolecular c

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