Structure
The prefix "levo-" refers to the shape of the molecule. Below is a diagram of the compound.
The molecule itself is actually called thyroxine, but the "levo-" tells chemists the shape of the compound.
Percent Composition (by mass):
| C | 22.55% |
| H | 1.26% |
| I | 63.54% |
| N | 1.75% |
| Na | 2.88% |
| O | 8.01% |
Percent Composition (by number):
| C | 42.86% |
| H | 28.57% |
| I | 11.43% |
| N | 3.13% |
| Na | 3.13% |
| O | 11.43% |
Peak Plasma level: 2-4 hours
Plasma half life: 7 days