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1257535-34-4

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1257535-34-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1257535-34-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,5,3 and 5 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1257535-34:
(9*1)+(8*2)+(7*5)+(6*7)+(5*5)+(4*3)+(3*5)+(2*3)+(1*4)=164
164 % 10 = 4
So 1257535-34-4 is a valid CAS Registry Number.

1257535-34-4Relevant articles and documents

PROCESS FOR PRODUCING LOW MOLECULAR WEIGHT ETHYLENE- AND ALPHA-OLEFIN-BASED MATERIALS

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Paragraph 0084, (2014/12/09)

The present invention generally relates to a process that prepares polyethylenes, poly-α-olefins or poly(co-ethylene-?-olefin) having backbone weight average molecular weights less than 2500 daltons. The process uses a metal-ligand complex as a precatalys

PROCESS FOR SELECTIVELY POLYMERIZING ETHYLENE AND CATALYST THEREFOR

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Page/Page column, (2013/03/26)

The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and to a metal-ligand complex (precatalyst) and catalyst useful in such processes, and to related compositions. The present invention also generally relates to ligands and intermediates useful for preparing the metal-ligand complex and to processes of their preparation.

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