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5045-65-8

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5045-65-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5045-65-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,4 and 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5045-65:
(6*5)+(5*0)+(4*4)+(3*5)+(2*6)+(1*5)=78
78 % 10 = 8
So 5045-65-8 is a valid CAS Registry Number.

5045-65-8Downstream Products

5045-65-8Relevant articles and documents

Enzymatic desymmetrization of 3-arylglutaric acid anhydrides

Fryszkowska, Anna,Komar, Marta,Koszelewski, Dominik,Ostaszewski, Ryszard

, p. 2475 - 2485 (2005)

Optically active (R)- and (S)-3-arylglutaric acid monoesters 3 were synthesized in quantitative yields and good stereoselectivities by lipase-catalyzed desymmetrization of the corresponding 3-arylglutaric anhydrides 2 with alcohols. It was observed that the stereochemical outcome of the reaction was influenced by the substituents present on the aromatic ring. The influence of the enzyme, alcohol, and solvent was systematically examined. Absolute configurations of the monoesters 3 were assigned by chemical correlation to corresponding lactones 4.

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