| The crystal structure of hagfish insulin has also been determined and it is virtually superimposable with porcine insulin. |
| Diastereomers, on the other hand, are not superimposable and also are not mirror images. |
| The heating isobar for the transformed monolayers remained virtually superimposable on the curve for films that had experienced no rapid compression. |
| Enantiomers exist when the molecules of the substances are mirror images but are not superimposable upon one another. |
| But related objects, a simple knife or a nail, for example, are superimposable on their mirror images and thus are not chiral. |
| A compound containing two or more chiral centres, whose mirror images are superimposable because the molecule as a whole is symmetric. |
