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855658-72-9

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855658-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 855658-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,5,6,5 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 855658-72:
(8*8)+(7*5)+(6*5)+(5*6)+(4*5)+(3*8)+(2*7)+(1*2)=219
219 % 10 = 9
So 855658-72-9 is a valid CAS Registry Number.

855658-72-9Relevant articles and documents

Direct Copper-Catalyzed C-H Monofluoroalkylation of Benzoxazoles with 1-Fluoro-1-haloalkanes

Li, Wei,Varenikov, Andrii,Gandelman, Mark

, p. 3138 - 3141 (2020)

The first example of direct C–H bond monofluoroalkylation with 1-fluoro-1-haloalkanes with no adjacent functional groups and with β-hydrogens has been developed. This transformation offers a straightforward route for the synthesis of a series of monofluoroalkylated benzoxazoles.

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