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130409-58-4

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130409-58-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 130409-58-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,4,0 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 130409-58:
(8*1)+(7*3)+(6*0)+(5*4)+(4*0)+(3*9)+(2*5)+(1*8)=94
94 % 10 = 4
So 130409-58-4 is a valid CAS Registry Number.

130409-58-4Relevant articles and documents

Enzyme-mediated enantioface-differentiating hydrolysis of α-substituted cycloalkanone enol esters

Matsumoto, Kazutsugu,Tsutsumi, Seiji,Ihori, Tamiko,Ohta, Hiromichi

, p. 9614 - 9619 (2007/10/02)

A new type of enzymatic hydrolysis, enantioface-differentiating hydrolysis of enol esters, is disclosed. As a result of screening, Pichia miso IAM 4682, a type of yeast, was selected as the best strain to perform the enantioselective hydrolysis of enol esters to give α-chiral ketones. For example, incubation of 1-acetoxy-2-methylcyclohexene (4a) with P. miso afforded (S)-2-methylcyclohexanone (5) in high optical yield. This enzymatic hydrolysis is applicable to various α-substituted cycloalkanone enol esters, and thereby chiral six-, eight-, ten-, and twelve-membered-ring ketones of 70-96% enantiomeric excess (ee) are easily prepared.

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