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1739-53-3

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1739-53-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1739-53-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,3 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1739-53:
(6*1)+(5*7)+(4*3)+(3*9)+(2*5)+(1*3)=93
93 % 10 = 3
So 1739-53-3 is a valid CAS Registry Number.
InChI:InChI=1/C2H5BCl2/c1-2-3(4)5/h2H2,1H3

1739-53-3Relevant articles and documents

Gipstein, E.,Kippur, P. R.,Haller, J. F.,Clark, B. F.

, p. 1087 - 1089 (1966)

A New Borylation Method for Alkylbenzene and Polystyrene

Paetzold, Peter,Hoffmann, Juergen

, p. 3724 - 3733 (2007/10/02)

The borylation of alkylbenzenes by Hal2BH (Hal = F, Cl, Br) gives H2 and a mixture of m- and p-alkyl(dihaloboryl)benzenes.In the case of bulky alkyl groups, such as isopropyl, tert-butyl, these are partially split off as R - H and RBHal2.The phenyl groups in polystyrene-divinylbenzene copolymers undergo borylation with Br2BH in a 55percent yield.

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