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20581-47-9

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20581-47-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20581-47-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,8 and 1 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20581-47:
(7*2)+(6*0)+(5*5)+(4*8)+(3*1)+(2*4)+(1*7)=89
89 % 10 = 9
So 20581-47-9 is a valid CAS Registry Number.

20581-47-9Downstream Products

20581-47-9Relevant articles and documents

SYNTHESIS OF p-NITROPHENYL β-GLYCOSIDES OF (1->6)-β-D-GALACTOPYRANOSYL-OLIGOSACCHARIDES

Ekborg, Goeran,Vranesic, Branka,Bhattacharjee, Apurba K.,Kovacs, Pavol,Glaudemans, Cornelis P. J.

, p. 203 - 212 (2007/10/02)

Sequential tritylation, benzoylation, and detritylation of p-nitrophenyl β-D-galactopyranoside gave p-nitrophenyl 2,3,4-tri-O-benzoyl-β-D-galactopyranoside (2).Reaction of 2 with 2,3,4,6-tetra-O-benzoyl-α-D-galactopyranosyl bromide gave p-nitrophenyl O-(2

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