* Methylphosphine and dimethylphosphine (garlic-metallic, two of the most potent odorants known)
* Phosphine (zinc phosphide poisoned bait)
* Diacetyl (butter flavor)
* Acetoin (butter flavor)
* Nerolin (orange flowers)
* Tetrahydrothiophene (added to natural gas)
* 2,4,6-Trichloroanisole (cork taint)
* Substituted pyrazines