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109055-08-5

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109055-08-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109055-08-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,0,5 and 5 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109055-08:
(8*1)+(7*0)+(6*9)+(5*0)+(4*5)+(3*5)+(2*0)+(1*8)=105
105 % 10 = 5
So 109055-08-5 is a valid CAS Registry Number.

109055-08-5Relevant articles and documents

Facile Preparation of 1,6-Anhydro-2-azido-3-O-benzyl-2-deoxy-β-D-glucopyranose and Its 4-O-Substituted Derivatives

Sakairi, Nobuo,Takahashi, Shunya,Wang, Feng,Ueno, Yoshihito,Kuzuhara, Hiroyoshi

, p. 1756 - 1758 (2007/10/02)

Treatment of 1,6-anhydro-2,3-O-endo-benzylidene-β-D-mannopyranose derivatives with trimethylamine-borane (1/1)-aluminium chloride resulted in highly regioselective fission of the cyclic acetals to give the corresponding 2-O-unprotected-3-O-benzyl derivatives. Trifluoromethane-sulfonylation of these, followed by nucleophilic substitution, afforded 2-azido-2-deoxy derivatives in good yields.

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