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117751-72-1

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117751-72-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117751-72-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,5 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 117751-72:
(8*1)+(7*1)+(6*7)+(5*7)+(4*5)+(3*1)+(2*7)+(1*2)=131
131 % 10 = 1
So 117751-72-1 is a valid CAS Registry Number.

117751-72-1Relevant articles and documents

Total synthesis of the Bacteroides fragilis zwitterionic polysaccharide a1 repeating unit

Pragani, Rajan,Seeberger, Peter H.

scheme or table, p. 102 - 107 (2011/03/17)

Nearly all bacteria capsular polysaccharides are T-cell-independent antigens that do not promote immunoglobulin class switching from IgM to IgG nor memory responses. In contrast, zwitterionic polysaccharides activate T-cell-dependent immune responses by m

An Extremely Powerful Acylation Reaction of Alcohols with Acid Anhydrides Catalyzed by Trimethylsilyl Trifluoromethanesulfonate

Procopiou, Panayiotis A.,Baugh, Simon P.D.,Flack, Stephen S.,Inglis, Graham G.A.

, p. 2342 - 2347 (2007/10/03)

Trimethylsilyl trifluoromethanesulfonate is an excellent catalyst for the acylation of alcohols with acid anhydrides. Highly functionalized primary, secondary, tertiary, and allylic alcohols, and phenols, were acylated cleanly and efficiently and in a fraction of the time used under the standard DMAP conditions.

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