Odors

Odors are emotive, irrefutably powerful, deceptive in nature, contribute to our emotional behaviour, influence our mood and thoughts, virtually transport us to various locations and times in our memories. Odors are too complex, do not appear to be sufficiently ‘real' since they do not exist in the absence of a perceiving substance. The odors are encoded in the structural moiety of chemicals. When a substance releases chemical into the air, it gives off a distinct odor. Odors are too complex and have an insubstantial nature, a complex molecular basis, and are perceived individually. A molecule can have more than one odor associated with it.

OlfactionBase houses 106 primary odors, which are further classified into 572 subodors based on nine known aroma-classification systems (Wine, Perfumes, Urban odor, Drinking water, Waste water, Compost, Fragrance, City smell, Human Perception).

You may download full odorant dataset or search for specific odor.
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Primary Odor
Sub-Odor
Sr.No. Primary Odor Sub Odor CAS-ID’s Chemical Name
51 Alliaceous Alliaceous 2253-73-8 Isopropyl isothiocyanate
52 Alliaceous Alliaceous 4253-89-8 Diisopropyl disulfide
53 Alliaceous Alliaceous 27817-67-0 Allyl propyl sulfide
54 Alliaceous Alliaceous 7341-17-5 2-Ethyl-1-hexanethiol
55 Alliaceous Alliaceous 34365-79-2 S-Isopropyl 3-methylbut-2-enethioate
56 Alliaceous Alliaceous 20333-39-5 Ethyl methyl disulfide
57 Alliaceous Alliaceous 14252-42-7 Ethane, 1,1-bis(ethylthio)-
58 Alliaceous Alliaceous 10544-63-5 Ethyl crotonate
59 Alliaceous Alliaceous 1438-91-1 Furfuryl methyl sulfide
60 Alliaceous Alliaceous 20582-85-8 4-(Methylthio)buta
61 Alliaceous Alliaceous 24330-52-7 1,3-Butanedithiol
62 Alliaceous Alliaceous 33922-73-5 Allyl propyl trisulfide
63 Alliaceous Alliaceous 31499-71-5 Methyl ethyl trisulfide
64 Alliaceous Alliaceous 63012-97-5 2-Methyl-3-(methylthio)furan
65 Alliaceous Alliaceous 227456-28-2 3-Mercapto-2-methylpentanal
66 Alliaceous Alliaceous 51647-38-2 3-Methyl-1,2,4-trithiolane
67 Alliaceous Alliaceous 1113-13-9 1-Propanesulfonothioic acid, S-propyl ester
68 Alliaceous Alliaceous 54717-17-8 2,4,6-Triethyl-1,3,5-dithiazinane
69 Alliaceous Alliaceous 4532-64-3 2,3-Butanedithiol
70 Alliaceous Alliaceous 94278-27-0 Ethyl 3-(furfurylthio)propionate
71 Alliaceous Alliaceous 5925-75-7 2-[(1h-Benzimidazol-2-ylmethyl)sulfanyl]-n-(naphthalen-2-yl)acetamide
72 Alliaceous Alliaceous 32951-19-2 1-Butene, 1-(methylthio)-, (E)-
73 Alliaceous Alliaceous 71159-90-5 1-p-Menthene-8-thiol
74 Alliaceous Alliaceous 37887-04-0 (R*,S*)-3-Mercaptobutan-2-ol
75 Alliaceous Alliaceous 252736-36-0 Furfuryl propyl disulfide
Showing 51 to 75 of total 281 entries