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75269-57-7

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75269-57-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75269-57-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,6 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 75269-57:
(7*7)+(6*5)+(5*2)+(4*6)+(3*9)+(2*5)+(1*7)=157
157 % 10 = 7
So 75269-57-7 is a valid CAS Registry Number.

75269-57-7Relevant articles and documents

Electrophilic oxygenation with XeF2 - H2O in hydrogen fluoride, Part 2. Electrophilic oxygenation of pentafluorobenzene derivatives C6F5X

Frohn,Bardin

, p. 1015 - 1021 (2007/10/03)

Electrophilic oxygenation of polyfluorobenzenes C6F5X (X = F, Cl, Br, H, CF3, NH3+, NMe3+, OH and OCH2CF3) with XeF2 and H2O in HF leads to the formation of polyfluorinated 1,4-cyclohexadienones. Pentafluoroiodobenzene is converted into C6F5IF2 and C6F5IF4, whereas [C6F5N2]+ [NbF6]- is unreactive towards this new type of electrophilic oxygenation.

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