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503590-34-9

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503590-34-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 503590-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,5,9 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 503590-34:
(8*5)+(7*0)+(6*3)+(5*5)+(4*9)+(3*0)+(2*3)+(1*4)=129
129 % 10 = 9
So 503590-34-9 is a valid CAS Registry Number.

503590-34-9Downstream Products

503590-34-9Relevant articles and documents

A copper-catalyzed C-N bond formation involving sp-hybridized carbons. A direct entry to chiral ynamides via N-alkynylation of amides

Frederick, Michael O.,Mulder, Jason A.,Tracey, Michael R.,Hsung, Richard P.,Huang, Jian,Kurtz, Kimberly C. M.,Shen, Lichun,Douglas, Christopher J.

, p. 2368 - 2369 (2007/10/03)

A copper-catalyzed new C-N bond formation involving a sp-hybridized carbon is described here leading to a facile entry for syntheses of chiral ynamides. This direct N-alkynylation of amides should have a significant impact on the future development of synthetic methodologies employing ynamides. Copyright

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