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81120-69-6

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81120-69-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81120-69-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,2 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81120-69:
(7*8)+(6*1)+(5*1)+(4*2)+(3*0)+(2*6)+(1*9)=96
96 % 10 = 6
So 81120-69-6 is a valid CAS Registry Number.

81120-69-6Relevant articles and documents

Preparation of Five-Membered Nitrogen-Containing Heterocycles via Combination of Tosylamide Anions with Phenyl(propynyl)iodonium Triflate

Feldman, Ken S.,Bruendl, Michelle M.,Schildknegt, Klaas

, p. 7722 - 7723 (1995)

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Palladium-Catalyzed Cyclization of ω-Olefinic Tosamides. Synthesis of Nonaromatic Nitrogen Heterocycles

Hegedus, Louis S.,McKearin, James M.

, p. 2444 - 2451 (2007/10/02)

The cyclization of aliphatic amino olefins to nonaromatic nitrogen heterocycles nas been accomplished by conversion of the amine to the corresponding p-toluenesulfonamide, followed by Pd(II)-catalyzed intramolecular amination of the olefin.The resulting t

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