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1194234-13-3

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1194234-13-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1194234-13-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,4,2,3 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1194234-13:
(9*1)+(8*1)+(7*9)+(6*4)+(5*2)+(4*3)+(3*4)+(2*1)+(1*3)=143
143 % 10 = 3
So 1194234-13-3 is a valid CAS Registry Number.

1194234-13-3Downstream Products

1194234-13-3Relevant articles and documents

Functional group tolerance in organocatalytic regioselective acylation of carbohydrates

Ueda, Yoshihiro,Muramatsu, Wataru,Mishiro, Kenji,Furuta, Takumi,Kawabata, Takeo

supporting information; experimental part, p. 8802 - 8805 (2015/05/06)

(Chemical Equation Presented) Organocatalytic regioselective acylation of mono- and disaccaharides with various functionalized acid anhydrides has been developed. Acylation of octyl β-D-glucopyranoside with acid anhydrides derived from R-amino acids, cinnamic acid, and gallic acid took place at C(4)-OH with 67-94% regioselectivity in the presence of catalyst 1. Regioselective acylation of disaccharides with functionalized acid anhydrides was also achieved with 78-94% selectivity. Especially, a disaccharide with seven free hydroxy groups (X = OH, R′ = H) underwent acylation at C(4)-OH with 78% regioselectivity in the presence of 1. Thus, functional group tolerance in the regioselective acylation catalyzed by 1 was found to be high.

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