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155225-24-4

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155225-24-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155225-24-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,2,2 and 5 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 155225-24:
(8*1)+(7*5)+(6*5)+(5*2)+(4*2)+(3*5)+(2*2)+(1*4)=114
114 % 10 = 4
So 155225-24-4 is a valid CAS Registry Number.

155225-24-4Relevant articles and documents

Synthesis of (2R,5S)- and (2S,5S)-2-carboxy-1,4-diaza[4.3.0]bicyclononane as building blocks for the synthesis of new potential HIV protease inhibitors

Falorni, Massimo,Porcheddu, Andrea,Giacomelli, Giampaolo

, p. 1999 - 2005 (1996)

A procedure for the preparation of optically active (2R,5S)- and (2S,5S)-2-carboxy-1,4-diaza-[4.3.0]bicyclononane is described. The method is based on the reduction of diketopiperazines obtained from cyclization of Pro-L-Ser or Pro-D-Ser and occurs withou

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