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229340-62-9

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229340-62-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 229340-62-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,9,3,4 and 0 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 229340-62:
(8*2)+(7*2)+(6*9)+(5*3)+(4*4)+(3*0)+(2*6)+(1*2)=129
129 % 10 = 9
So 229340-62-9 is a valid CAS Registry Number.

229340-62-9Downstream Products

229340-62-9Relevant articles and documents

A bridged bis-amide-based rare earth amine compound and its preparation method and application

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Paragraph 0047; 0048, (2017/04/21)

The invention discloses bridged bisamido rare-earth amide compounds, and a preparation method and catalytic application thereof. The general formula of the rare-earth compounds is {LLn[N(SiMe3)2].THF}2, and the chemical structural formula is disclosed in the specification. In the general formula, L represents a bridged bisamido ligand, and the ligand LH2 is N,N'-(cyclohexane-1,2-diyl)bis(4-tert-butylbenzamide); and Ln is a rare-earth metal selected from lanthanum, neodymium, samarium, yttrium or ytterbium. The bridged bisamido rare-earth amide compounds have the advantages of simple synthesis process, definite structure and high yield. The invention also discloses a preparation method of the compounds and an application method of the compounds as a catalyst for catalyzing carboxylation reaction between alkynyl terminal group and carbon dioxide. The application method has the advantages of mild conditions, high activity, favorable selectivity and wide substrate application range.

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