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223400-50-8

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223400-50-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 223400-50-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,4,0 and 0 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 223400-50:
(8*2)+(7*2)+(6*3)+(5*4)+(4*0)+(3*0)+(2*5)+(1*0)=78
78 % 10 = 8
So 223400-50-8 is a valid CAS Registry Number.

223400-50-8Downstream Products

223400-50-8Relevant articles and documents

Non-biaryl atropisomers derived from carbohydrates. Part 1. Stereoselective synthesis of 1-aryl-5-hydroxyimidazolidine-2-thiones and their transformation into imidazoline-2-thiones

Avalos, Martin,Babiano, Reyes,Cintas, Pedro,Jimenez, Jose L.,Palacios, Juan C.,Silvero, Guadalupe,Valencia, Concepcion

, p. 4377 - 4400 (1999)

A series of chiral-5-hydroxyimidazolidine-2-thiones bearing an ortho- substituted aromatic residue at N-1, which are readily accessible from D- glucosamine, have been synthesized as potential atropisomers. In general, these substances display a trans arrangement between H-4 and H-5, and hence the absolute configuration at C-5 was shown to be R. However, the first example of this type of structures having a cis configuration (S at C-5) is also described. Moreover, the mechanistic features associated with the conversion of 5-acetoxyimidazolidine-2- thiones into imidazoline-2-thiones have also been evaluated.

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