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1233503-31-5

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1233503-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1233503-31-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,3,5,0 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1233503-31:
(9*1)+(8*2)+(7*3)+(6*3)+(5*5)+(4*0)+(3*3)+(2*3)+(1*1)=105
105 % 10 = 5
So 1233503-31-5 is a valid CAS Registry Number.

1233503-31-5Downstream Products

1233503-31-5Relevant articles and documents

Pd-catalyzed C-N bond formation with heteroaromatic tosylates

Mantel, Mette L. H.,Lindhardt, Anders T.,Lupp, Daniel,Skrydstrup, Troeis

supporting information; experimental part, p. 5437 - 5442 (2010/09/18)

A protocol for the palladium(0)-catalyzed amidation of heteroaromatic tosylates was successfully developed. The methodology proved to be effective for a variety of heteroaryl tosylates including the pyridine, pyrimidine, quinoline and quinoxaline ring systems. Successful carbon-nitrogen bond formation with these heteroaryl tosylates could be performed with a wide range of primary amides, oxazolidinones, lactams, anilines and indoles, including one cyclic urea. Moreover, this C-N bond forming reaction provided products with high structural diversity. The coupling reaction was also amenable to scale up applications.

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