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155800-28-5

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155800-28-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155800-28-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,8,0 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 155800-28:
(8*1)+(7*5)+(6*5)+(5*8)+(4*0)+(3*0)+(2*2)+(1*8)=125
125 % 10 = 5
So 155800-28-5 is a valid CAS Registry Number.

155800-28-5Relevant articles and documents

Diorganotellurium(IV) bis(fluorocarboxylates)

Srivastava, Sanjay Kumar,Srivastava, T. N.,Singh, Jai Deo,Srivastava, Arun K.,Kumar, P.

, p. 103 - 108 (1994)

Diorganotellurium(IV) bis(fluorocarboxylates) have been prepared by the interaction of R2Te(OMe)2 with fluorocarboxylic acids (R'COOH).Identical products were obtained by the metathetical reaction of R2TeCl2 with silver salts of the fluorocarboxylic acids in 1 : 2 molar ratios.However, when the reaction proceeded in a 1 : 1 molar ratio, the product was R2TeCl(OCOR').However, reaction of R2TeO with CF3COOH yielded 2*H2O> and species.The products are non-conducting and monomeric in solution.The mode of bonding of the fluorocarboxylate group and a possible geometry around the central tellurium atom are suggested on the basis of physicochemical and spectral (IR, mass, 1H, 13C, 19F and 125Te NMR) studies.

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