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249889-32-5

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249889-32-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 249889-32-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,9,8,8 and 9 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 249889-32:
(8*2)+(7*4)+(6*9)+(5*8)+(4*8)+(3*9)+(2*3)+(1*2)=205
205 % 10 = 5
So 249889-32-5 is a valid CAS Registry Number.

249889-32-5Upstream product

249889-32-5Downstream Products

249889-32-5Relevant articles and documents

Influence of the presence of heteroatoms in the olefin chain on the Pauson-Khand reaction with metal (Cr, W) carbene enyne complexes

Pares, Joan,Moreto, Josep M.,Ricart, Susagna,Barluenga, Jose,Fananas, Francisco J.

, p. 247 - 253 (1999)

The study of the influence caused by the presence of an heteroatom, either at an internal or terminal site of the olefin, on the outcome of the Pauson-Khand cycloaddition in metal carbene enyne complexes is reported. In this study the steric and electronic effects have been evaluated. A diversion from the normal course of the reaction mechanism is observed.

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