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221325-43-5

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221325-43-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221325-43-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,3,2 and 5 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 221325-43:
(8*2)+(7*2)+(6*1)+(5*3)+(4*2)+(3*5)+(2*4)+(1*3)=85
85 % 10 = 5
So 221325-43-5 is a valid CAS Registry Number.

221325-43-5Relevant articles and documents

A novel silyl linker: Motif for side chain tethered approach to solid- phase glycopeptide synthesis

Nakamura, Kazuhiko,Ishii, Akira,Ito, Yukishige,Nakahara, Yoshiaki

, p. 11253 - 11266 (2007/10/03)

In order to facilitate the solid-phase syntheses of protected glycopeptide blocks, we designed a novel silyl linker, which allows the alcoholic side chain (carbohydrate, serine, or threonine) of (glyco-)peptides to link to the solid support. Utilizing this linker, peptide coupling reactions at both the N- and the C-termini were successful. Synthesis of the glycophorin AM fragment corresponding to the N-terminal glycoheptapeptide is demonstrated.

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