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1260254-02-1

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1260254-02-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1260254-02-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,0,2,5 and 4 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1260254-02:
(9*1)+(8*2)+(7*6)+(6*0)+(5*2)+(4*5)+(3*4)+(2*0)+(1*2)=111
111 % 10 = 1
So 1260254-02-1 is a valid CAS Registry Number.

1260254-02-1Relevant articles and documents

Catalytic asymmetric bromine-lithium exchange: A new tool to build axial chirality

Perron, Quentin,Alexakis, Alexandre

supporting information; experimental part, p. 2611 - 2620 (2011/01/05)

We present here the first catalytic desymmetrization of the 2,2′,6,6′-tetrabromobiphenyl 1 and analogues, by a bromine-lithium exchange catalyzed by either diamines or diether derivatives (0.5 equiv.), yielding axially chiral compounds in high yield (up to 89%) and high enantioselectivity (up to 82%).

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