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91740-82-8

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91740-82-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91740-82-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,4 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91740-82:
(7*9)+(6*1)+(5*7)+(4*4)+(3*0)+(2*8)+(1*2)=138
138 % 10 = 8
So 91740-82-8 is a valid CAS Registry Number.

91740-82-8Downstream Products

91740-82-8Relevant articles and documents

SYNTHESIS OF N-(1-DEOXYHEXITOL-1-YL)AMINO ACIDS, REFERENCE COMPOUNDS FOR THE NONENZYMIC GLYCOSYLATION OF PROTEINS

Walton, Donald J.,Ison, Edward R.,Szarek, Walter A.

, p. 37 - 50 (2007/10/02)

The N-(1-deoxy-D-mannitol-1-yl) and N-(1-deoxy-D-glucitol-1-yl) derivatives of L-valine, L-alanine, L-threonine, and L-leucine were prepared by reductive amination of D-mannose and D-glucose with appropriate amino acids, in the presence of sodium cyanoborohydride.Nε-(1-deoxy-D-mannitol-1-yl)- and Nε-(1-deoxy-D-glucitol-1-yl)-L-lysine were prepared by similar reactions of hexoses with Nα-tert-butoxycarbonyl and Nα-benzyloxycarbonyl-L-lysine, followed by removal of the protecting groups.The structures were confirmed by (1)H-n.m.r. spectroscopy, which showed that each compound was completely free of its C-2 epimer.The synthetic compounds may be used as reference compounds for the identification of N-(1-deoxyhexitol-1-yl)amino acids formed when N-(1-deoxy-D-fructose-1-yl) groups of nonenzymically glycosylated proteins, of the hemoglobin A1c type, are reduced with sodium borohydride, and the protein is subjected to acid-catalyzed hydrolysis.

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