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1262029-67-3

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1262029-67-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1262029-67-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,2,0,2 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1262029-67:
(9*1)+(8*2)+(7*6)+(6*2)+(5*0)+(4*2)+(3*9)+(2*6)+(1*7)=133
133 % 10 = 3
So 1262029-67-3 is a valid CAS Registry Number.

1262029-67-3Relevant articles and documents

A chemoenzymatic synthesis of deoxy sugar esters involving stereoselective acetylation of hemiacetals catalyzed by CALB

Villo, Ly,Kreen, Malle,Kudryashova, Marina,Metsala, Andrus,Tamp, Sven,Lille, Uelo,Pehk, Tonis,Parve, Omar

experimental part, p. 44 - 51 (2011/07/30)

An extension of the scope of the chemoenzymatic strategy for the synthesis of stereochemically pure pyranose deoxy sugar esters of different carboxylic acids has been achieved. The objective of the work was to extend the strategy to the synthesis of furanose deoxy sugar derivatives and additionally, to N-Boc-protected amino acid esters. With all used carboxylic acids (deoxycholic acid, α-methoxyphenylacetic acid, N-Boc-l-phenylalanine and N-Boc-l-tyrosine) the lipase-catalyzed stereoselective acetylation of furanose or pyranose hemiacetal moiety as a key step afforded one desired stereochemically pure acetylated hemiacetal deoxy sugar ester in high de.

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