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80727-21-5

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80727-21-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80727-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,7,2 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 80727-21:
(7*8)+(6*0)+(5*7)+(4*2)+(3*7)+(2*2)+(1*1)=125
125 % 10 = 5
So 80727-21-5 is a valid CAS Registry Number.

80727-21-5Relevant articles and documents

Synthesis and properties of adenylate trimers A2′p5′A2′p5′A, A2′p5′A3′p5′A and A3′p5′A2′p5′A

Charubala, Ramamurthy,Pfleiderer, Wolfgang

, p. 1933 - 1936 (1980)

Triadenylates with (2′-5′)(2′-5′) and mixed (2′-5′)(3′-5′) and (3′-5′)(2′-5′) linkages respectively were synthesized via the phosphotriester approach followed by deblocking of the fully protected intermediates. The isomeric trimers were characterized by NMR- and CD-spectra and show very similar hypochromicity effects.

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