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1256380-89-8

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1256380-89-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1256380-89-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,3,8 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1256380-89:
(9*1)+(8*2)+(7*5)+(6*6)+(5*3)+(4*8)+(3*0)+(2*8)+(1*9)=168
168 % 10 = 8
So 1256380-89-8 is a valid CAS Registry Number.

1256380-89-8Downstream Products

1256380-89-8Relevant articles and documents

Synthesis of N-(2-pyridyl)indoles via Pd(II)-catalyzed oxidative coupling

Chen, Jinlei,Pang, Qingyu,Sun, Yanbo,Li, Xingwei

, p. 3523 - 3526 (2011/06/24)

Readily available Pd(II) chloride catalysts can catalyze selective and efficient oxidative coupling between N-aryl-2-aminopyridines and internal alkynes to yield N-(2-pyridyl)indoles. This process involves the ortho C-H activation of N-aryl-2-aminopyridines, and CuCl2 was used as an oxidant. Compared to our previously reported Rh(III)-catalyzed synthesis of this class of product, this method is advantageous with a wider scope of alkynes and cost-effective Pd(II) catalysts. Molecular oxygen can be used as a terminal oxidant.

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