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150931-59-2

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150931-59-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 150931-59-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,0,9,3 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 150931-59:
(8*1)+(7*5)+(6*0)+(5*9)+(4*3)+(3*1)+(2*5)+(1*9)=122
122 % 10 = 2
So 150931-59-2 is a valid CAS Registry Number.

150931-59-2Relevant articles and documents

Synthesis of (R)- and (S)-3-(tert-butyldimethylsilyloxy)-1-pyrroline N- oxides - Chiral nitrones for synthesis of biologically active pyrrolidine derivative, Geissman-Waiss lactone

Murahashi, Shun-Ichi,Ohtake, Hiroaki,Imada, Yasushi

, p. 2765 - 2766 (2007/10/03)

Tungstate-catalyzed oxidation of O-tert-butyldimethylsilyl (O-TBDMS) protected (R)-3-hydroxypyrrolidine ((R)2), derived from trans-4-hydroxy-L- proline, gave O-TBDMS protected (R)-3-hydroxy-1-pyrroline N-oxide ((R)1), which is a new chiral precursor for the synthesis of Geissman-Waiss lactone. The enantiomeric nitrone (S)-1 was also prepared by the oxidation of (S)-2 derived from L-malic acid.

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