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Odorous compounds - odorants
| Compounds* | Odour Description |
| 3-methyl-1H-indole | putrid, fecal |
| Acetaldehyde | penetrating, pungent, suffocating odour |
| Acetic acid | vinegar |
| Acetone | pungent |
| Acetonitrile | sweet ethereal odour |
| Acetophenone | sweet pungent odour of orange blossom or jasmine |
| Acrolein | burnt sweet |
| Acrylic acid | acrid odour |
| Acrylonitrile | pungent onion- or garlic-like odour |
| Allyl alcohol | irritating smell |
| Allyl chloride | pungent, garlic-onion odour |
| Ammonia | pungent, irritating |
| Benzaldehyde | bitter almonds |
| Benzene | slightly sweet odour |
| Captan | pungent smell |
| Carbon disulfide | sweet, pleasant, chloroform-like odour |
| Chlorine | bleach, pungent |
| Cresol | sweet tarry odour |
| Dimethyl disulfide | repulsive |
| Dimethyl sulfide | decayed cabbage |
| Ethanol | slight alcohol odour |
| Ethyl alcohol | sweet-smelling |
| Ethyl mercaptan | garlic odour |
| Formaldehyde | pungent, suffocating odour |
| Hexanoic acid | sharp, sour, rancid odour, goat-like odour |
| Hydrogen sulfide | rotten egg |
| Methanol | sweet |
| Methyl mercaptan | rotten cabbage |
| Nonyl alcohol | offensive smell |
| Phenol (carbolic acid) | strong sweet odour |
| Pyridine | sour, putrid, fishy |
| Skatole | strong fecal odour |
| Toluene | sweet pungent |
| Xylene | sweet odour |
* The compounds listed here are just some of frequent occured odorous compounds.
Odorous compounds such as VOC can be analysed with GC-MS system.
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