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
201 Alliaceous Onion 4829-04--3 1,3-Dithiolane
202 Alliaceous Onion 6028-61-1 Dipropyl trisulfide
203 Alliaceous Onion 23654-92-4 3,5-Dimethyl-1,2,4-trithiolane
204 Alliaceous Onion 69382-62-3 Ethanedithiol
205 Alliaceous Onion 30453-31-7 Ethyl propyl disulfide
206 Alliaceous Onion 40789-98-8 3-Mercapto-2-butanone
207 Alliaceous Onion 65505-17-1 Methyl 2-methyl-3-furyl disulfide
208 Alliaceous Onion 625-60-5 S-Ethyl thioacetate
209 Alliaceous Onion 1003-04-9 Tetrahydrothiophen-3-one
210 Alliaceous Onion 1073-29-6 2-(Methylthio)phenol
211 Alliaceous Onion 2307-10-0 S-Propyl thioacetate
212 Alliaceous Onion 13532-18-8 Methyl 3-(methylthio)propionate
213 Alliaceous Onion 13678-58-5 1-(Methylthio)-2-butanone
214 Alliaceous Onion 13678-59-6 2-Methyl-5-(methylthio)furan
215 Alliaceous Onion 13679-85-1 2-Methyltetrahydrothiophen-3-one
216 Alliaceous Onion 15679-19-3 2-Ethoxythiazole
217 Alliaceous Onion 34135-85-8 Allyl methyl trisulfide
218 Alliaceous Onion 34619-12-0 4-Mercapto-2-butanone
219 Alliaceous Onion 41820-22-8 Allyl thiopropionate
220 Alliaceous Onion 37887-04-0 3-Mercapto-2-butanol
221 Alliaceous Onion 55704-78-4 2,5-Dimethyl-1,4-dithiane-2,5-diol
222 Alliaceous Onion 57500-00-2 Methyl furfuryl disulfide
223 Alliaceous Onion 59020-85-8 Furfuryl thiopropionate
224 Alliaceous Onion 61295-51-0 2,6-Dimethyl-3-((2-methyl-3-furyl)thio)-4-heptanone
225 Alliaceous Onion 67633-97-0 3-Mercapto-2-pentanone
Showing 201 to 225 of total 281 entries