Smelliest molecule

- Who
- Ethyl mercaptan (C2H5SH)
- When
- 01 January 0001
ethyl mercaptan (C2H5SH) and butyl seleno-mercaptan (C4H9SeH) are the smelliest substances in the world with a smell reminiscent of a combination of rotting cabbage, garlic, onions, burnt toast and sewer gas