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157085-57-9

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157085-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157085-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,0,8 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 157085-57:
(8*1)+(7*5)+(6*7)+(5*0)+(4*8)+(3*5)+(2*5)+(1*7)=149
149 % 10 = 9
So 157085-57-9 is a valid CAS Registry Number.

157085-57-9Relevant articles and documents

Synthesis of β-dimorphecolic acid exploiting highly stereoselective reduction of a side-chain carbonyl group in a π-allyltricarbonyliron lactone complex

Ley, Steven V.,Meek, Graham

, p. 1125 - 1133 (2007/10/03)

A highly enantioselective synthesis of β-dimorphecolic acid 1 is reported. The synthesis features a diastereoselective reduction of the ketone 4, in which the tricarbonyliron lactone tether induces a 1,5 transfer of chirality, followed by a stereoselectiv

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