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151957-62-9

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151957-62-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 151957-62-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,1,9,5 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 151957-62:
(8*1)+(7*5)+(6*1)+(5*9)+(4*5)+(3*7)+(2*6)+(1*2)=149
149 % 10 = 9
So 151957-62-9 is a valid CAS Registry Number.

151957-62-9Relevant articles and documents

Enantioselective syntheses of 2-arylpropanoic acid non-steroidal antiinflammatory drugs and related compounds

Hamon, David P.G.,Massy-Westropp, Ralph A.,Newton, Josephine L.

, p. 12645 - 12660 (2007/10/02)

(S)-2-[4′-(2″-Methylpropyl)phenylpropanoic acid (ibuprofen) and (S)-2-(3′-benzoylphenyl)propanoic acid (ketoprofen) have been synthesised in high enantiomeric excess. Control of stereochemistry was achieved by a combination of Sharpless epoxidalion followed by catalytic hydrogenolysis of the introduced benzylic epoxide oxygen bond. Also, the coupling of organic compounds in the presence of palladium with enantiopure 2-(3-iodophenyl)propanoic and 2-(4-iodophenyl)propanoic acids, prepared by the methodology above, is a general method for the synthesis of optically active arylpropanoic acids.

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