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610763-54-7

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610763-54-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 610763-54-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,1,0,7,6 and 3 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 610763-54:
(8*6)+(7*1)+(6*0)+(5*7)+(4*6)+(3*3)+(2*5)+(1*4)=137
137 % 10 = 7
So 610763-54-7 is a valid CAS Registry Number.

610763-54-7Relevant articles and documents

Facile anomer-oriented syntheses of 4-methylumbelliferyl sialic acid glycosides

Hassan, Abdullah A.,Oscarson, Stefan

, p. 6644 - 6649 (2021/08/10)

As part of a program to find new sialidases and determine their enzymatic specificity and catalytic activity, a library of 4-methylumbelliferyl sialic acid glycosides derivatised at the C-5 position were prepared fromN-acetylneuraminic acid. Both α- and β-4-methylumbelliferyl sialic acid glycosides were prepared in high yields and stereoselectivity. α-Anomers were accessedviareagent control by utilising additive CH3CN and TBAI, whereas the β-anomers were synthesised through a diastereoselective addition reaction of iodine and the aglycone to the corresponding glycal followed by reduction of the resulting 3-iodo compounds. Both anomer-oriented synthetic pathways allow for gram-scale stereoselective syntheses of the desired C-5 modified neuraminic acid derivatives for use as tools to quantify the enzymatic activity and substrate specificity of known sialidases, and potential detection and investigation of novel sialidases.

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