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540474-09-7

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540474-09-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 540474-09-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,0,4,7 and 4 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 540474-09:
(8*5)+(7*4)+(6*0)+(5*4)+(4*7)+(3*4)+(2*0)+(1*9)=137
137 % 10 = 7
So 540474-09-7 is a valid CAS Registry Number.

540474-09-7Relevant articles and documents

Synthesis of (R)-2,3-epoxypropyl(1→3)-β-D-pentaglucoside

Huang, Gang-Liang,Mei, Xin-Ya,Liu, Man-Xi

, p. 603 - 608 (2007/10/03)

The title pentasaccharide was synthesized via a 2 + 3 strategy. The disaccharide donor, 3-O-acetyl-2-O-benzoyl-4,6-O-benzylidene-β-d- glucopyranosyl-(1→3)-2-O-benzoyl-4,6-O-benzylidene-α-d- glucopyranosyl trichloroacetimidate (8), was obtained by selectiv

Regioselective benzoylation of 6-O-protected and 4,6-O-diprotected hexopyranosides as promoted by chiral and achiral ditertiary 1,2-diamines

Hu, Guixian,Vasella, Andrea

, p. 4369 - 4391 (2007/10/03)

Monobenzoylation of triols (6-O-silylated glycopyranosides) or diols (4,6-O-benzylidenated glycopyranosides) with benzoyl chloride and triethylamine at - 60° to 23° is promoted by catalytic amounts of ditertiary 1,2-diamines. The regioselectivity depends

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