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18870-73-0

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18870-73-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18870-73-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,8,7 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18870-73:
(7*1)+(6*8)+(5*8)+(4*7)+(3*0)+(2*7)+(1*3)=140
140 % 10 = 0
So 18870-73-0 is a valid CAS Registry Number.

18870-73-0Downstream Products

18870-73-0Relevant articles and documents

Process for preparing cyclopentadienyl group-containing silicon compound or cyclopentadienyl group-containing germanium compound

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, (2008/06/13)

Disclosed is a process for preparing a cyclopentadienyl group-containing silicon compound or a cyclopentadienyl group-containing germanium compound, comprising reacting (i) a lithium, sodium or potassium salt of a cyclopentadiene derivative with (ii) a silicon halide compound or a germanium halide compound in the presence of a cyanide or a thiocyanate. The cyanide or the thiocyanate is preferably a copper salt. According to the process of the invention, a cyclopentadienyl group-containing silicon compound or a cyclopentadienyl group-containing germanium compound, which is very useful for the preparation of a metallocene complex catalyst component, can be prepared in a high yield for a short period of time.

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