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111811-80-4

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111811-80-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111811-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,8,1 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 111811-80:
(8*1)+(7*1)+(6*1)+(5*8)+(4*1)+(3*1)+(2*8)+(1*0)=84
84 % 10 = 4
So 111811-80-4 is a valid CAS Registry Number.

111811-80-4Relevant articles and documents

P-chiral oligonucleotides. 2D ROESY NMR assignment of absolute configuration at phosphorus and conformational analysis of 5′-O-monomethoxytrityl-(2′-O-deoxyribonucleoside) 3′-O-[O-(4-nitrophenyl)]methanephosphonates

Jankowski, Stefan,Olejniczak, Agnieszka B.,Lesnikowski, Zbigniew J.

, p. 177 - 190 (2007/10/03)

Fast and simple methodology for the assignment of the absolute configuration at the phosphorus atom in diastereomerically pure Rp and Sp 5′-O-monomethoxytrityl-2′-O-deoxynucleoside 3′-O-(O-4-nitrophenyl) methanephosphonate (3) was es

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