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220890-41-5

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220890-41-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220890-41-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,8,9 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 220890-41:
(8*2)+(7*2)+(6*0)+(5*8)+(4*9)+(3*0)+(2*4)+(1*1)=115
115 % 10 = 5
So 220890-41-5 is a valid CAS Registry Number.

220890-41-5Upstream product

220890-41-5Relevant articles and documents

First synthesis of H-phosphonate oligonucleotides bearing N-unmodified bases

Wada, Takeshi,Honda, Fumio,Sato, Yuichi,Sekine, Mitsuo

, p. 915 - 918 (2007/10/03)

Oligodeoxyribonucleotides bearing H-phosphonate internucleotidic linkages and unmodified nucleobases were synthesized for the first time by the new H-phosphonate method using N-unprotected monomers. The 6-hydroxyhexyl phosphonates at both the 5' and 3' ends were found to be highly effective for stabilization of the H-phosphonate oligonucleotides. Solid-phase synthesis of H-phosphonate oligodeoxyribonucleotides containing dA, dC, dG, and T was achieved.

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