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1743-97-1

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1743-97-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1743-97-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,4 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1743-97:
(6*1)+(5*7)+(4*4)+(3*3)+(2*9)+(1*7)=91
91 % 10 = 1
So 1743-97-1 is a valid CAS Registry Number.

1743-97-1Downstream Products

1743-97-1Relevant articles and documents

THE TRIFLUOROMETHYLATION OF CHLOROAROMATICS USING THE COPPER-CF2Br2-DIALKYLAMIDE REACTION SYSTEM

Clark, James H.,Denness, James E.,McClinton, Martin A.,Wynd, Andrew J.

, p. 411 - 426 (2007/10/02)

The in situ generation of CuCF3 from the reaction of copper, dibromodifluoromethane and either N,N-dimethylformamide or N,N-dimethylacetamide (Burton's reagent) has been used for the direct substitution of chlorine by CF3 in a number of aromatic substrates.Particular attention has been paid to the effects of ring substituents on the efficiency of reaction.

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