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20229-53-2

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20229-53-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20229-53-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,2 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20229-53:
(7*2)+(6*0)+(5*2)+(4*2)+(3*9)+(2*5)+(1*3)=72
72 % 10 = 2
So 20229-53-2 is a valid CAS Registry Number.

20229-53-2Relevant articles and documents

Frucooligosaccharides purification: Complexing simple sugars with phenylboronic acid

Porras-Domínguez, Jaime R.,Rodríguez-Alegría, María Elena,Miranda, Alfonso,Alvarez Berber, Laura Patricia,Edmundo, Castillo,López Munguía, Agustín

, p. 204 - 212 (2019/02/12)

Prebiotic fructooligosaccharides (FOS) are currently obtained by enzymatic reaction with fructosyltransferases (FTFs) using sucrose as both donor and acceptor. In these reactions glucose results as the most abundant by-product, arising from each fructosyl transfer event and, together with fructose, because of the inherent hydrolytic activity of the FTFs. As FOS are mainly used as prebiotic in nutraceutical foods, the reduction or total elimination of monosaccharides is required. In this work the selective elimination of monosaccharides from a synthetic FOS mixture was achieved through the selective complexation of glucose and fructose with phenyl boronic acid (PBAc) followed by ethyl-acetate extraction. The process was applied to a complex mixture of FOS obtained in an enzymatic synthesis reaction containing 40% glucose, 15.8% fructose and 35% of FOS, elimination of the sugars was achieved through 3:1 molar reactions, resulting in a levan-type FOS product with 97% purity.

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