E;Z;N
| Allowed Value | Details |
|---|---|
| E | (E)- alkene (German, entgegen = opposite) |
| N | atom is not a chiral center |
| R | rectus - right handed configuration |
| S | sinister - left handed configuration |
| Z | (Z)- alkene (German, zusammen = together) |
| Allowed Value | Details |
|---|---|
| E | (E)- alkene (German, entgegen = opposite) |
| N | atom is not a chiral center |
| R | rectus - right handed configuration |
| S | sinister - left handed configuration |
| Z | (Z)- alkene (German, zusammen = together) |