1. Gas Odorant

Due to its extremely low olfactory threshold (about 0.3 ppb) and extremely strong, pungent sulfur smell (similar to the smell of rotten eggs or skunk), 2-Propanethiol is often used as:

Natural gas, liquefied petroleum gas (LPG) odorant for leak detection

Mixed with other mercaptans such as ethyl mercaptan and tert-butyl mercaptan to enhance olfactory performance

2. Gas chromatography and chemical analysis standards (Analytical Reagent)

In petrochemical and chemical laboratories, 2-Propanethiol is also often used as:

Gas chromatography quantitative standards (for detecting sulfides and analyzing natural gas components)

3. Organic synthesis intermediates (Chemical Intermediate)

2-Propanethiol contains active thiol (–SH) groups, which can participate in a variety of organic synthesis reactions and are widely used in:

Polymer modifier: used to prepare sulfur-containing polyols, modified resins, and rubber additives.Pharmaceutical synthesis: used as a starting reagent or an introducer in the synthesis of certain sulfur-containing drugs and pesticide precursors

Sulfur modifier for functionalized coatings or catalyst carriers

4. Laboratory reagents and odor research (R&D and Odor Chemistry)

Used for olfactory testing, odor research, and olfactory molecular threshold experiments.Commonly used in universities and research institutions to conduct sulfide reaction mechanism or odor control research

https://www.chemechemi.com/propanethiol-CAS-75-33-2.html