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1289100-95-3

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1289100-95-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1289100-95-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,9,1,0 and 0 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1289100-95:
(9*1)+(8*2)+(7*8)+(6*9)+(5*1)+(4*0)+(3*0)+(2*9)+(1*5)=163
163 % 10 = 3
So 1289100-95-3 is a valid CAS Registry Number.

1289100-95-3Downstream Products

1289100-95-3Relevant articles and documents

A practical silicon-free strategy for differentiation of hydroxy groups in arabinofuranose derivatives

Abronina, Polina I.,Podvalnyy, Nikita M.,Sedinkin, Sergey L.,Fedina, Ksenia G.,Zinin, Alexander I.,Chizhov, Alexander O.,Torgov, Vladimir I.,Kononov, Leonid O.

experimental part, p. 1219 - 1225 (2012/05/20)

Effective differentiation of 3,5-diol system and 2-hydroxy group in arabinofuranose derivatives, which is required for the preparation of building blocks useful for the synthesis of nucleoside analogues and oligosaccharide fragments of mycobacterial arabinogalactan and lipoarabinomannan, was achieved by using 3,5-di-O-benzoyl-1,2-O-benzylidene-βD-arabinofuranose or 3-O-(chloroacetyl)-β- d-arabinofuranose 1,2,5-orthobenzoate, both readily accessible from inexpensive methylα-d-arabinofuranoside via the corresponding glycosyl bromides. The use of expensive organosilicon protecting groups is completely avoided in this novel strategy, a feature that makes it amenable to scale-up. Georg Thieme Verlag Stuttgart New York.

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