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419562-69-9

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419562-69-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 419562-69-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,1,9,5,6 and 2 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 419562-69:
(8*4)+(7*1)+(6*9)+(5*5)+(4*6)+(3*2)+(2*6)+(1*9)=169
169 % 10 = 9
So 419562-69-9 is a valid CAS Registry Number.

419562-69-9Downstream Products

419562-69-9Relevant articles and documents

Tl(I) complexes of cymantrene-based tris(1-pyrazolyl)borates: Polymers and macrocycles

Guo,Bats,Bolte,Wagner

, p. 3572 - 3576 (2001)

Cymantrene-based tris(1-pyrazolyl)borates have been synthesised from the reaction of CymBBr2 and Cym'BBr2 with pyrazole (Hpz) in the presence of triethylamine [Cym: cymantrenyl; Cym': (methyl)cymantrenyl]. The Tl(I) salts CymB(pz)3Tl,2a, and Cym'B(pz)3Tl,2b, have been structurally characterised by X-ray crystallography. Similar to the corresponding complex FcB(pz)3Tl (Fc: ferrocenyl), CymB(pz)3Tl features a polymeric structure with bridging [B(pz)3] fragments in the solid state. Cym'B(pz)3Tl shows a related oligomeric structure. This time a macrocyclic tetramer rather than a linear chain is observed. To provide a ligand of high solubility in non-polar solvents, compound Cym'B(pz4-R)3Tl, [R = CH2(C6H11)]2d, has been synthesised, which shows a reduced symmetry at the organometallic moiety, together with (cyclohexyl)methyl substituents in the 4-positions of all pyrazolyl rings.

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