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19672-25-4

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19672-25-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19672-25-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,6,7 and 2 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19672-25:
(7*1)+(6*9)+(5*6)+(4*7)+(3*2)+(2*2)+(1*5)=134
134 % 10 = 4
So 19672-25-4 is a valid CAS Registry Number.

19672-25-4Relevant articles and documents

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Hull,Shine

, p. 8102,8106 (1973)

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Chemoselective electrochemical reduction of nitroarenes with gaseous ammonia

Chang, Liu,Li, Jin,Wu, Na,Cheng, Xu

supporting information, p. 2468 - 2472 (2021/04/02)

Valuable aromatic nitrogen compounds can be synthesized by reduction of nitroarenes. Herein, we report electrochemical reduction of nitroarenes by a protocol that uses inert graphite felt as electrodes and ammonia as a reductant. Depending on the cell voltage and the solvent, the protocol can be used to obtain aromatic azoxy, azo, and hydrazo compounds, as well as aniline derivatives with high chemoselectivities. The protocol can be readily scaled up to >10 g with no decrease in yield, demonstrating its potential synthetic utility. A stepwise cathodic reduction pathway was proposed to account for the generations of products in turn.

Activation method of bis(pinacolato)diborane and application thereof

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Paragraph 0065; 0066; 0067, (2016/10/31)

The invention discloses an activation method of bis(pinacolato)diborane. R substituted pyridine induces the homolysis of bis(pinacolato)diborane to obtain boron free radicals, and the process is shown by a formula I, wherein R refers to independent cyano and nitro. The invention also provides an application of the activation method of bis(pinacolato)diborane. Specifically, the activation method is applied to the synthesis of hydro-azobenzene derivatives.

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