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280140-89-8

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280140-89-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 280140-89-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,0,1,4 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 280140-89:
(8*2)+(7*8)+(6*0)+(5*1)+(4*4)+(3*0)+(2*8)+(1*9)=118
118 % 10 = 8
So 280140-89-8 is a valid CAS Registry Number.

280140-89-8Downstream Products

280140-89-8Relevant articles and documents

Ionic tagged amine supported on magnetic nanoparticles: Synthesis and application for versatile catalytic Knoevenagel condensation in water

Ying, Anguo,Qiu, Fangli,Wu, Chenglin,Hu, Huanan,Yang, Jianguo

, p. 33175 - 33183 (2014)

Propylamine modified with imidazolium ionic moiety grafted onto magnetic nanoparticles (MNPs) was prepared and evaluated as a catalyst for Knoevenagel condensation in water at room temperature. The catalyst was efficient in the reaction to give the condensation products in good yields. It is worth noting that the ionic-tagged catalyst performed significantly better than its ionic tag-free counterpart. Finally, the catalyst could be reused for 8 times with a slight loss in its catalytic activity. the Partner Organisations 2014.

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