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457067-55-9

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457067-55-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 457067-55-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,7,0,6 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 457067-55:
(8*4)+(7*5)+(6*7)+(5*0)+(4*6)+(3*7)+(2*5)+(1*5)=169
169 % 10 = 9
So 457067-55-9 is a valid CAS Registry Number.

457067-55-9Downstream Products

457067-55-9Relevant articles and documents

Appel-reagent-mediated transformation of glycosyl hemiacetal derivatives into thioglycosides and glycosyl thiols

Ghosh, Tamashree,Santra, Abhishek,Misra, Anup Kumar

, p. 974 - 982 (2013/07/19)

A series of glycosyl hemiacetal derivatives have been transformed into thioglycosides and glycosyl thiols in a one-pot two-step reaction sequence mediated by Appel reagent (carbon tetrabromide and triphenylphosphine). 1,2-trans-Thioglycosides and β-glycosyl thiol derivatives were stereoselectively formed by the reaction of the in situ generated glycosyl bromides with thiols and sodium carbonotrithioate. The reaction conditions are reasonably simple and yields were very good.

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