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902140-45-8

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902140-45-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 902140-45-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,2,1,4 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 902140-45:
(8*9)+(7*0)+(6*2)+(5*1)+(4*4)+(3*0)+(2*4)+(1*5)=118
118 % 10 = 8
So 902140-45-8 is a valid CAS Registry Number.

902140-45-8Relevant articles and documents

New macrobicyclic triphosphazides and triphosphazenes formed by self-assembly of tripodal triazides with triphosphanes

Alajarín, Mateo,López-Leonardo, Carmen,Berná, José

, p. 6190 - 6202 (2007/10/03)

The self-assembly of tris(3-azidobenzyl)amines with 1,1,1-tris[(diphenylphosphino)methyl]ethane via tripod-tripod coupling proceeds successfully to give chiral macrobicyclic triphosphazides. The heating of these macrobicyclic cages induces a remarkable stepwise triple extrusion of molecular nitrogen to afford tri-λ5-phosphazenes, which preserved the chiral, propeller-like topology of their precursors. The replacement of one benzylic arm by an ortho-phenethylic or propylenic one still allows the success of the self-assembly. However, the quaternization of the pivotal nitrogen atom of the triamine in the form of N-oxide prevented its coupling with the triphosphane.

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