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23339-18-6

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23339-18-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23339-18-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,3,3 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 23339-18:
(7*2)+(6*3)+(5*3)+(4*3)+(3*9)+(2*1)+(1*8)=96
96 % 10 = 6
So 23339-18-6 is a valid CAS Registry Number.

23339-18-6Relevant articles and documents

Is sulfate lost during the chemical release of oligosaccharides from glycoproteins?

King, Kevin R.,Williams, J. Michael,Clamp, John R.,Corfield, Anthony P.

, p. 41 - 49 (2007/10/03)

Model experiments using methyl α-D-galactopyranoside 6-sulfate have implied that the Carlson conditions (1 M sodium borohydride and 0.05 M sodium hydroxide at 45 °C) for the release of O-linked oligosaccharides from glycoproteins do not cause significant loss of sulfate ester groups. However the more vigorous conditions used to release N-linked oligosaccharides are more likely to cause considerable sulfate loss from a galactoside 6-sulfate as a result of 3,6-anhydride formation. Experiments with dextran sulfate suggested that sulfate loss due to oxirane formation was also not significant under the Carlson conditions. These results were supported by experiments with [35S]sulfate-labelled human rectal mucus glycoprotein.

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