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20993-78-6

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20993-78-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20993-78-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,9 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20993-78:
(7*2)+(6*0)+(5*9)+(4*9)+(3*3)+(2*7)+(1*8)=126
126 % 10 = 6
So 20993-78-6 is a valid CAS Registry Number.

20993-78-6Relevant articles and documents

Enantioselective hydrolyses with Yarrowia lipolytica: A versatile strain for esters, enol esters, epoxides, and lactones

Fantin, Giancarlo,Fogagnolo, Marco,Guerrini, Alessandra,Medici, Alessandro,Pedrini, Paola,Fontana, Silvia

, p. 2709 - 2713 (2001)

Racemic secondary esters 1-3, γ-lactones 8-9, and styrene oxide 7 are kinetically resolved via hydrolysis with Yarrowia lipolytica YL2 strain. The enantioselective hydrolysis of prochiral enol esters 4-6 to the corresponding homochiral carbonyl compounds 13-15 is also described. Subsequent reduction of the ketone 13 and of the aldehyde 15 can be avoided using lyophilised cells.

Anti-Markovnikov Addition of Nucleophiles to a Non-conjugated Olefin via Single Electron Transfer Photochemistry

Gassman, Paul G.,Bottorff, Kyle J.

, p. 5449 - 5452 (2007/10/02)

Nucleophilic solvent has been added regiospecifically in an anti-Markovnikov manner to a simple non-conjugated olefin, 1-methylcyclohexene, through single electron transfer induced photochemistry using the 1-cyanonaphthalene - biphenyl pair for achieving photooxidation.

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