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136963-25-2

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136963-25-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136963-25-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,9,6 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 136963-25:
(8*1)+(7*3)+(6*6)+(5*9)+(4*6)+(3*3)+(2*2)+(1*5)=152
152 % 10 = 2
So 136963-25-2 is a valid CAS Registry Number.

136963-25-2Relevant articles and documents

Synthesis of an artificial antigen that corresponds to a disaccharide repeating unit of the capsular polysaccharide of Haemophilus influenzae type d. A facile synthesis of methyl 2-acetamido-2-deoxy-β-D-mannopyranoside

Classon,Garegg,Oscarson,Tiden

, p. 187 - 196 (2007/10/02)

The synthesis is described of p-nitrophenyl 2-acetamido-3-O-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-2-deoxy-β- D-mannopyranosiduronic acid, corresponding to the disaccharide repeating unit of the capsular polysaccharide of Haemophilus influenzae type d, which, after conversion of the p-nitro- into a p-amino-phenyl residue, may be attached to a protein to make an artificial antigen for immunological studies. The synthesis incorporates a facile route to the 2-acetamido-2-deoxy-β-D-mannopyranosyl unit. The synthesis of p-nitrophenyl 2-acetamido-3-O- (2-acetamido-2-deoxy-β-D- glucopyranosyl) -2-deoxy -β-D-mannopyranosiduronic acid, corresponding to the disaccharide repeating unit of the capsular polysaccharide of Haemophilus influenzae type d, is described. This acid, after conversion of the p-nitro- into a p-amino-phenyl residue, may be attached to a protein to make an artificial antigen for immunological studies. The synthesis incorporates a facile route to the 2-acetamido-2 -deoxy-β-D-mannopyranosyl unit.

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