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1040255-57-9

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1040255-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1040255-57-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,0,2,5 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1040255-57:
(9*1)+(8*0)+(7*4)+(6*0)+(5*2)+(4*5)+(3*5)+(2*5)+(1*7)=99
99 % 10 = 9
So 1040255-57-9 is a valid CAS Registry Number.

1040255-57-9Upstream product

1040255-57-9Relevant academic research and scientific papers

Nickel-Catalyzed Denitrogenative Annulation of 1,2,3-Benzotriazin-4-(3H)-ones with Benzynes for Construction of Phenanthridinone Scaffolds

Thorat, Vijaykumar H.,Upadhyay, Nitinkumar Satyadev,Murakami, Masahiro,Cheng, Chien-Hong

, p. 284 - 289 (2018)

The synthesis of phenanthridinones via denitrogenative annulation of 1,2,3-benzotriazin-4-(3H)-ones with arynes catalysed by Ni(0)/dppm was successfully developed. A variety of phenanthridinones were prepared in good to excellent yields. Based on this method, nature product, N-methylcrinasidine, was synthesized. (Figure presented.).

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