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918819-06-4

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918819-06-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 918819-06-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,8,8,1 and 9 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 918819-06:
(8*9)+(7*1)+(6*8)+(5*8)+(4*1)+(3*9)+(2*0)+(1*6)=204
204 % 10 = 4
So 918819-06-4 is a valid CAS Registry Number.

918819-06-4Relevant articles and documents

Enantioselective microbial hydrolysis of dissymmetrical cyclic carbonates with disubstitution

Nogawa, Masaki,Sugawara, Satomi,Iizuka, Rie,Shimojo, Megumi,Ohta, Hiromichi,Hatanaka, Minoru,Matsumoto, Kazutsugu

, p. 12071 - 12083 (2007/10/03)

Enantioselective microbial hydrolysis of C1 and C2 dissymmetrical cyclic carbonates with disubstitution (methyl and another groups) has been developed. Pseudomonas diminuta (FU0090), a bacterium, efficiently catalyzes the hydrolysis of five-membered cyclic carbonates. While the trans-substrates are hydrolyzed with low enantioselectivities and/or reactivities, the microbe hydrolyzes the cis-substrates with very high enantioselectivities to afford the corresponding almost optically pure anti-(2R,3S)-diols. On the other hand, six-membered trans-cyclic carbonates are enantioselectively hydrolyzed to afford the corresponding optically active syn-(2R,4R)-diols, although the hydrolysis of the cis-substrates gives racemic compounds. In all cases, the enzyme prefers the (R)-enantiomer for the carbon atom bearing a methyl group.

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