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174541-85-6

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174541-85-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 174541-85-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,4,5,4 and 1 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 174541-85:
(8*1)+(7*7)+(6*4)+(5*5)+(4*4)+(3*1)+(2*8)+(1*5)=146
146 % 10 = 6
So 174541-85-6 is a valid CAS Registry Number.

174541-85-6Relevant articles and documents

Chiral 4,5-Disubstituted Oxazolidin-2-ones: Stereoselective Synthesis of β-Hydroxy-α-amino Acids

Giovanni, Maria Cristina Di,Misiti, Domenico,Zappia, Giovanni,Monache, Giuliano Delle

, p. 475 - 482 (2007/10/03)

The stereocontrolled synthesis of β-hydroxy-α-amino acids from O-benzyl D- and L-serine, by the use of 4,5-disubstituted oxazolidin-2-ones as chiral intermediates, is presented as a suitable alternative to the known procedures.The reported synthesis of both enantiomers of threo-3-hydroxyglutamic acid and (2S,3R)-3-hydroxyproline together with a flexible and stereodivergent preparation of threonine analogues is discussed as an example of the versatility of the present approach.

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