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2. Cat pheromone - Wikipedia

   en.wikipedia.org/wiki/Cat_pheromone

   A cat pheromone is a chemical molecule, or compound, that is used by cats and other felids for communication. [1] These pheromones are produced and detected specifically by the body systems of cats and evoke certain behavioural responses. [1] [2] Cat pheromones are commonly released through the action of scent rubbing. [2]

3. Felinine - Wikipedia

   en.wikipedia.org/wiki/Felinine

   A precursor for mercaptan is 3-mercapto-3-methylbutanol (MMB). MMB is a chemical which gives a strong odor to cat urine. This smell is likely used for communicating amongst cats as well as scaring away predators and rivals. That is, the smell can mark their territory amongst other male cats and attract a female mate. [9]

4. Pyrrole - Wikipedia

   en.wikipedia.org/wiki/Pyrrole

   Pyrrole is an extremely weak base for an amine, with a conjugate acid pK a of −3.8. The most thermodynamically stable pyrrolium cation (C 4 H 6 N +) is formed by protonation at the 2 position. Substitution of pyrrole with alkyl substituents provides a more basic molecule—for example, tetramethylpyrrole has a conjugate acid pK a of +3.7.

5. 3-Mercapto-3-methylbutan-1-ol - Wikipedia

   en.wikipedia.org/wiki/3-Mercapto-3-methylbutan-1-ol

   Another study found that the perception threshold of 3-mercapto-3-methylbutan-1-ol is 1500 ng/L. [15] This study found that MMB had a "catty" odor, had an orthonasal odor threshold of 2 μg/L in water, and was found in concentrations from 150-1500 μg/kg in coffee. The synthesis of MMB in wine is brought on by the fermentation process.

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Scent rubbing - Wikipedia

   en.wikipedia.org/wiki/Scent_rubbing

   A variety of different odors can elicit this behavior including feces, vomit, fresh or decaying meat, insecticide, urine, repellent, ashes, human food and so on. [ 2 ] [ 3 ] Scent rubbing can be produced by an animal smelling novel odors, which include manufactured smells such as perfume or motor oil and carnivore smells including feces and ...