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49622-40-4

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49622-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 49622-40-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,6,2 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 49622-40:
(7*4)+(6*9)+(5*6)+(4*2)+(3*2)+(2*4)+(1*0)=134
134 % 10 = 4
So 49622-40-4 is a valid CAS Registry Number.

49622-40-4Downstream Products

49622-40-4Relevant articles and documents

SOME REACTIONS OF PHENYLENE- AND POLYPHENYLENE-MERCURIALS

Massey, A. G.,Al-Jabar, N. A. A.,Humphries, R. E.,Deacon, G. B.

, p. 25 - 40 (2007/10/02)

Cleavage reactions of six phenylene- and polyphenylene-mercury heterocycles with the mercuric halides and mercuric acetate in suitable refluxing solvents readily produce 1,2-C6X4(HgX)2; 2,2'-C6H4C6H4(HgX)2 and 2,2''-C6H4C6H4C6H4(HgX)2 (X = Cl, Br, I or CH3CO2).Addition of silver acetate to 2,2'-C6H4C6H4(HgBr)2 gives 2,2'-C6H4C6H4(HgO2CCH3)2 which reacts with concentrated hydrochloric acid to form 2,2'-C6H4C6H4(HgCl)2.Treatment with sodium iodide, or in some cases simply the application of heat under vacuum, causes symmetrization of these cleavage products back to the original heterocycles in high yield.The terphenylenemercury dimer, (C6H4C6H4C6H4Hg)2, forms solvates with a wide variety of donor and non-donor solvents.Pyrolysis of mercuric 2,3,4,5-tetrafluorobenzoate at 190 deg.C. yields 2-mercurio-3,4,5,6-tetrafluorobenzoate and 2,3,4,5-tetrafluorobenzoic acid; at 300 deg.C. the former gives tetrafluorophenylenemercury, (C6F4Hg)3.

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