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68243-63-0

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68243-63-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68243-63-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,2,4 and 3 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 68243-63:
(7*6)+(6*8)+(5*2)+(4*4)+(3*3)+(2*6)+(1*3)=140
140 % 10 = 0
So 68243-63-0 is a valid CAS Registry Number.

68243-63-0Downstream Products

68243-63-0Relevant articles and documents

Complexes of Copper(II) Chloride with Diaryl-4,4′-Bisdiazonium Dichlorides, Their Transformation into 4,4-Chlorodiaryls and Reaction with Olefins

Obushak,Lyakhovich,Fedorovich,Ganushchak

, p. 1471 - 1476 (2007/10/03)

Diaryl-4,4′-bisdiazonium dichlorides react with olefins in CuCl2 presence to form 4,4′-bisdiazoniumdiaryl tetrachlorocuprates(II) as intermediates. The method of synthesis of these stable complex diazonium salts under ordinary conditions has been worked out. They decompose in polar solvents at room temperature to form 4,4′-dichlorodiaryls in high yield. In the presence of olefins (compounds containing a X = Y bond, acrylates and metacrylates, acrylonitrile, styrene, 1,3-butadiene) they decompose forming adducts, products of chloroarilation of the enumerated substrates to double bond consuming one or two diazogroups. 4-Styryl-4′-chlorodiaryls, the products of arylation by one diazogroup, were obtained from styrene.

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