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681810-40-2

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681810-40-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 681810-40-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,1,8,1 and 0 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 681810-40:
(8*6)+(7*8)+(6*1)+(5*8)+(4*1)+(3*0)+(2*4)+(1*0)=162
162 % 10 = 2
So 681810-40-2 is a valid CAS Registry Number.

681810-40-2Downstream Products

681810-40-2Relevant articles and documents

Shielding Effect of Micelle for Highly Effective and Selective Monofluorination of Indoles in Water

Bora, Pranjal P.,Bihani, Manisha,Plummer, Scott,Gallou, Fabrice,Handa, Sachin

, p. 3037 - 3042 (2019)

Highly selective direct monofluorination of indoles and arenes was developed through an approach that allows site-specific solubility of substrate and fluorine source in the micelle. This approach was highly selective for a broad range of substrates with excellent functional group tolerance. Differences in binding constant and solubility of indoles and arenes in the micelle allowed the fine-tuning of selectivity. Control experiments suggested a radical pathway and provided insight into the role of micelles of the environmentally benign amphiphile PS-750-M. Dynamic light scattering experiments strongly indicated the site-specific solubility of the substrate and fluorine source. The methodology was successfully adapted to gram scale, and the E-factor established from a recycle study indicated that the process is environmentally responsible and sustainable.

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