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250724-55-1

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250724-55-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 250724-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,0,7,2 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 250724-55:
(8*2)+(7*5)+(6*0)+(5*7)+(4*2)+(3*4)+(2*5)+(1*5)=121
121 % 10 = 1
So 250724-55-1 is a valid CAS Registry Number.

250724-55-1Upstream product

250724-55-1Relevant articles and documents

Synthesis and characterization of 2,6-difluorophenyliodine(III) derivatives

Padelidakis, Vasilios,Tyrra, Wieland,Naumann, Dieter

, p. 9 - 15 (1999)

2,6-F2C6H3IF2 was isolated in quantitative yield from the reactions of 2,6-F2C6H3I and XeF2 or F2/N2-mixtures. Ligand exchange using (CF3/s

METHOD FOR PREPARING A POLYFLUORINATED COMPOUND

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Page/Page column 49-50, (2019/12/25)

The present invention relates to a process for preparing a polyfluorinated compound of formula Ar-Ri(l), wherein Ar-Ri(l) is an aromatic ring system wherein R1 is selected from the group consisting of SF4CI, SF3, SF2CF3, TeFS, TeF4CF3, SeF3, IF2, SeF2CF3, and IF4, X2 is N or CR2, X3 is N or CR 3, X 4 is N or CR 4, X 5 is N or CR 5, X 6 is N or CR 6, and the total number of nitrogen atoms in the aromatic ring system is between 0 and 3, and if X 5 is CR 5 and X 6 is CR 6 R 5 and R 6 may form together a saturated or unsaturated five or six membered ring system comprising one or more nitrogen, wherein said five or six membered ring system may be substituted with one or more residues R 7 said process involving the following reaction step reacting a starting material selected from the group consisting of Ar2S2, Ar2Te2, Ar2Se2, ArSCF3, Arl, ArTeCF3, ArSeCF3, ArSCF3, and ArSCI, wherein Ar has the same definition as above, with trichloroisocyanuric acid (TCICA) of the formula (III) in the presence of the alkali metal fluoride (MF).

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