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880653-42-9

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880653-42-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 880653-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,0,6,5 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 880653-42:
(8*8)+(7*8)+(6*0)+(5*6)+(4*5)+(3*3)+(2*4)+(1*2)=189
189 % 10 = 9
So 880653-42-9 is a valid CAS Registry Number.

880653-42-9Relevant articles and documents

Palladium-catalyzed arylation of bis(4-bromo-2-methylinden-1-yl) dimethylsilane and related compounds

Nikulin,Tsarev,Lygin,Ryabov,Beletskaya,Voskoboinikov

, p. 2298 - 2306 (2008)

A new procedure was developed for the synthesis of a broad range of ansa-zirconocenes containing bis(2-methyl-4-arylindenyl)dimethylsilane ligands. The method is based on the palladium-catalyzed reaction of halogen-substituted bis(indenyl)dimethylsilanes with various organozinc compounds. The aryl-substituted bridging ligands thus prepared serve as the starting compounds for the synthesis of ansa-zirconocenes, which can be used as components of promising catalysts for propylene polymerization.

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