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.
Download full dataset

Primary Odor
Sub-Odor
Sr.No. Primary Odor Sub Odor CAS-ID’s Chemical Name
226 Alliaceous Onion 2179-58-0 Allyl methyl disulfide
227 Alliaceous Onion 10152-76-8 Allyl methyl sulfide
228 Alliaceous Onion 2051-04--9 Diisoamyl disulfide
229 Alliaceous Onion 2444-49-7 Diallyl tetrasulfide
230 Alliaceous Onion 3600-24-6 Diethyl trisulfide
231 Alliaceous Onion 4253-89-8 Diisopropyl disulfide
232 Alliaceous Onion 4455-13-4 Ethyl (methylthio)acetate
233 Alliaceous Onion 5943-34-0 Diisopropyl trisulfide
234 Alliaceous Onion 42474-44-2 2,3,5-Trithiahexane
235 Alliaceous Onion 27817-67-0 Allyl propyl sulfide
236 Alliaceous Onion 67715-80-4 2-Methyl-4-propyl-1,3-oxathiane
237 Alliaceous Onion 34365-79-2 S-Isopropyl 3-methylbut-2-enethioate
238 Alliaceous Onion 5287-45-6 3-Methyl-2-butene-1-thiol
239 Alliaceous Onion 29926-41-8 2-Acetyl-2-thiazoline
240 Alliaceous Onion 6540-86-9 2,4,6-Trithiaheptane
241 Alliaceous Onion 136115-65-6 2-Propenoic acid, 3-(methylthio)-, ethyl ester, (E)-
242 Alliaceous Onion 1438-91-1 Furfuryl methyl sulfide
243 Alliaceous Onion 19788-49-9 Ethyl 2-mercaptopropionate
244 Alliaceous Onion 24330-52-7 1,3-Butanedithiol
245 Alliaceous Onion 628-00-2 2-Heptanethiol
246 Alliaceous Onion 72437-68-4 Methyl pentyl disulfide
247 Alliaceous Onion 33922-73-5 Allyl propyl trisulfide
248 Alliaceous Onion 31499-71-5 Methyl ethyl trisulfide
249 Alliaceous Onion 50746-10-6 3-Mercapto-3-methylbutyl formate
250 Alliaceous Onion 28588-75-2 Bis(2-methyl-3-furyl)disulfide
Showing 226 to 250 of total 281 entries