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2041-43-2

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2041-43-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2041-43-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,4 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 2041-43:
(6*2)+(5*0)+(4*4)+(3*1)+(2*4)+(1*3)=42
42 % 10 = 2
So 2041-43-2 is a valid CAS Registry Number.

2041-43-2Upstream product

2041-43-2Downstream Products

2041-43-2Relevant articles and documents

Use of Simple Test Reactions to Characterise the Catalytic Activity of a Commercial CoO-MoO3-Al2O3 Catalyst

John, Christopher S.,Williamson, James G.,Kennedy, Lois V. F.,Tyler, J. Kelvin

, p. 1356 - 1365 (2007/10/02)

Exchange of thiophene with D2 and reactions of deuterium-labelled propene and isobutene, followed using a combination of mass spectometry and microwave spectroscopy, have been used to characterise the catalytic nature of a commercial CoO-MoO3-Al2O3 (CMA) catalyst.The results indicate that the activity of partially sulphided CMA, produced by exposure to H2S or by hydrodesulphurization (h.d.s.) of ethanethiol, closely resembles that of unsupported MoS2.Thus, sulphided-CMA shows high selectivity/activity for exchange of the α hydrogens in thiophene and catalyses double bond migration in propene through half-hydrogenated intermediates, activity characteristic of MoS2, whereas oxide-CMA is much less active for α exchange and shows Lewis acid type activity for the latter reaction.It appears that a CMA catalyst during h.d.s. may usefully be described as "dual-functional", with MoS2 supported on, and stabilised by, an acidic support.

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