File:Mercaptopurine zwitterion ball from xtal.png

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Ball-and-stick model of the mercaptopurine molecule, also known as Purinethol, an anti-cancer drug. This image shows it as a zwitterion.

Atom positions (and bond order for the zwitterionic form) based on a crystallographic study of mercaptopurine monohydrate (see source).

Color code:
  Carbon, C: black
  Hydrogen, H: white
  Nitrogen, N: blue
  Sulfur, S: yellow
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Source

Own work.

Crystallographic data from E. Sletten, J. Sletten and L. H. Jensen. “The crystal and molecular structure of 6-mercaptopurine monohydrate”. Acta Cryst. (1969). B25, 1330-1338. DOI:10.1107/S0567740869004018

 
This image was created with Discovery Studio Visualizer.
Author Jynto (more from this user)
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current19:14, 10 January 2018Thumbnail for version as of 19:14, 10 January 20183,000 × 2,422 (946 KB)Jynto (talk | contribs)=={{int:filedesc}}== {{Information |description=Ball-and-stick model of the '''Mercaptopurine''' molecule, also known as '''Purinethol''', an anti-cancer drug. This image shows it as a zwitterion. Atom positions (...

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