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128342-39-2

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128342-39-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128342-39-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,4 and 2 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 128342-39:
(8*1)+(7*2)+(6*8)+(5*3)+(4*4)+(3*2)+(2*3)+(1*9)=122
122 % 10 = 2
So 128342-39-2 is a valid CAS Registry Number.

128342-39-2Downstream Products

128342-39-2Relevant articles and documents

Novel nicotinonitrile-coumarin hybrids as potential acetylcholinesterase inhibitors: design, synthesis, in vitro and in silico studies

Sanad, Sherif M. H.,Mekky, Ahmed E. M.

, p. 213 - 224 (2020/08/05)

Abstract: Alzheimer’s disease is a degenerative brain condition that is the leading cause of dementia affecting millions of people around the world. Therapeutic development has focused on the problem of the loss of basal forebrain cholinergic function, as it is the only evidence responsible for brain neurodegeneration in patients with Alzheimer’s disease. Several attempts to improve cholinergic neurotransmission have been investigated by minimizing synaptic degradation of acetylcholine using acetylcholinesterase inhibitors. In the current study, we explore the designing of a new series of nicotinonitrile-coumarin hybrids as potential acetylcholinesterase inhibitors. The new hybrids were prepared utilizing pyridine-2(1H)-thiones as starting precursors. The in vitro acetylcholinesterase (AChE) inhibitory activities were examined for the new nicotinonitrile-coumarin hybrid molecules, when compared with donepezil as a standard drug with IC50 of 14?nM. Coumarin derivative, linked to 6-(4-nitrophenyl)-4-phenylnicotinonitrile, showed more effective inhibitory activity than the reference donepezil with IC50 of 13?nM. The free radical-scavenging capabilities against DPPH of the new hybrid derivatives were screened. Additionally, their in vitro cytotoxic activities have been tested against various eukaryotic cells. Furthermore, docking study showed excellent interaction between nicotinonitrile-coumarin hybrids and AChE. Graphic abstract: [Figure not available: see fulltext.]

NOVEL SYNTHETIC ROUTE TO PYRIDINE-2(1H)-THIONES: UNEXPECTED PRODUCTS OF THE REACTION OF β-PHENETHYLIDENEMALONONITRILES WITH ARYLMETHYLENECYANOTHIOACETAMIDES

Elgemeie, Galal Eldin Hamza

, p. 123 - 127 (2007/10/02)

A novel synthesis of 3-cyanopyridine-2(1H)-thione derivatives utilizing arylmethylenecyanothioacetamides and β-phenethylidenemalononitriles as starting components is described.

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