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188658-45-9

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188658-45-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188658-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,6,5 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 188658-45:
(8*1)+(7*8)+(6*8)+(5*6)+(4*5)+(3*8)+(2*4)+(1*5)=199
199 % 10 = 9
So 188658-45-9 is a valid CAS Registry Number.

188658-45-9Downstream Products

188658-45-9Relevant articles and documents

New 2-tetrahydrofurfuryloxotitanium(IV) intermediates for the synthesis of olefin polymerization catalysts

Sobota, Piotr,Utko, Jozef,Szafert, Slawomir,Szczegot, Krzysztof

, p. 679 - 683 (2007/10/03)

The complexes [TiCl3(tmen){η1-OCH2CH(CH2) 3O}] 1, [Ti2(μ-Cl)2Cl4{η2-OCH 2CH(CH2)3O}2] 2 and [TiCl4(tmen)] 3 (tmen = Me2NCH2CH2NMe2) have been synthesized and structurally characterized by X-ray diffraction. The crystals of 1 consist of monomeric [TiCl3(tmen){η1-OCH2CH(CH2) 3O}] molecules. Three chloride, one oxygen and two nitrogen atoms form a distorted octahedron around the titanium atom. Compound 2 has a dimeric structure. Each titanium atom is surrounded by two bridging chloride atoms, two terminal chloride atoms and two oxygen atoms of the 2-tetrahydrofurfuryloxide ligand. The crystals of compound 3 consist of monomeric molecules in which four terminal chloride atoms and two nitrogen atoms from the chelate tmen ligand form a distorted octahedron around Ti. High catalytic activity was found for 1 and 2.

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