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250665-95-3

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250665-95-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 250665-95-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,0,6,6 and 5 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 250665-95:
(8*2)+(7*5)+(6*0)+(5*6)+(4*6)+(3*5)+(2*9)+(1*5)=143
143 % 10 = 3
So 250665-95-3 is a valid CAS Registry Number.

250665-95-3Relevant articles and documents

Asymmetric synthesis of 1,2-diaryl-2-amino ethanols

Vicario, Jose L.,Badia, Dolores,Carrillo, Luisa,Anakabe, Eneritz

, p. 745 - 751 (2007/10/03)

A straightforward procedure for the asymmetric synthesis of 1,2-diaryl-2-amino ethanols is described. The key step relies on the diastereoselective electrophilic amination of the enolates derived from the corresponding (S,S)-(+)-pseudoephedrine arylacetam

Asymmetric synthesis of arylglycine amino acids using (S,S)-(+)- pseudoephedrine derived amides

Vicario, Jose L.,Badia, Dolores,Dominguez, Esther,Crespo, Ana,Carrillo, Luisa,Anakabe, Eneritz

, p. 7123 - 7126 (2007/10/03)

Arylglycine aminoacids were obtained in good yields and with enantiomeric excesses higher than 99% by using an asymmetric amination reaction protocol on (S,S)-(+)-pseudoephedrine based arylacetamide enolates with di-tert-butylazodicarboxylate. Subsequent hydrazinolysis and hydrolysis yielded the target aminoacids.

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