Date published: 2026-5-30

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OR9A2 Activators

OR9A2 Activators are a set of chemical compounds that enhance the signaling and functional activity of the olfactory receptor OR9A2. Cinnamaldehyde, eugenol, and methyl salicylate each bind to OR9A2, mimicking the effect of natural odorants, which increases intracellular calcium levels or cAMP, leading to amplified neuronal activation. Similarly, ethyl vanillin and isoamyl acetate act as ligands for the receptor, stimulating a conformational change that favors signal transduction, thereby enhancing the sensitivity and signaling of olfactory pathways. Anethole and benzaldehyde selectively bind to OR9A2, functioning as agonists that elevate intracellular calcium signaling, and citral serves as an activator by inducing G-protein activation, all three contributing to stronger olfactory responses.

Further enhancing OR9A2 activity, geraniol, limonene, linalool, and vanillin each serve as potent ligands that interact with the active site of the receptor, promoting G-protein coupled receptor signaling through the classic olfactory transduction pathway. These activations result in an increase in intracellular cAMP and calcium levels, which are crucial for the olfactory signaling process, culminating in heightened sensory perception. By acting directly on OR9A2, these compounds induce specific ligand-receptor interactions that lead to an overall potentiation of the functional role of OR9A2 in olfaction.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Eugenol

97-53-0sc-203043
sc-203043A
sc-203043B
1 g
100 g
500 g
$32.00
$62.00
$218.00
2
(1)

Eugenol acts directly on OR9A2 by binding to the receptor, which triggers an increase in intracellular cAMP, enhancing the receptor's sensitivity and signaling to olfactory neurons.

Methyl Salicylate

119-36-8sc-204802
sc-204802A
250 ml
500 ml
$47.00
$70.00
(1)

Methyl salicylate is known to activate OR9A2 by binding to its ligand-binding domain, which leads to the activation of the olfactory signaling cascade and an enhanced sensory response.

3-Ethoxy-4-hydroxybenzaldehyde

121-32-4sc-238538
100 g
$31.00
(0)

Ethyl vanillin activates OR9A2, simulating the presence of the natural aromatic ligand and initiating olfactory receptor neuron responses through increased cAMP levels.

Isopentyl acetate

123-92-2sc-250190
sc-250190A
100 ml
500 ml
$107.00
$225.00
(0)

Isoamyl acetate serves as a ligand for OR9A2, enhancing receptor activity by inducing a conformational change that promotes signal transduction in olfactory pathways.

Anethole

104-46-1sc-481571A
sc-481571
10 g
100 g
$576.00
$316.00
(0)

Anethole selectively activates OR9A2 by direct binding, which leads to downstream signaling events in olfactory neurons and an enhanced perception of anise-scented molecules.

Citral

5392-40-5sc-252620
1 kg
$212.00
(1)

Citral is an activator of OR9A2, binding to the receptor to induce olfactory G-protein activation and subsequent neuronal excitation.

Geraniol

106-24-1sc-235242
sc-235242A
25 g
100 g
$45.00
$119.00
(0)

Geraniol is a terpene that binds and activates OR9A2, leading to an increase in intracellular cAMP and calcium, potentiating the olfactory signaling process.

D-Limonene

5989-27-5sc-205283
sc-205283A
100 ml
500 ml
$84.00
$129.00
3
(1)

Limonene interacts with OR9A2 by binding to its active site, promoting G-protein coupled receptor signaling and enhancing the overall olfactory response.

Linalool

78-70-6sc-250250
sc-250250A
sc-250250B
5 g
100 g
500 g
$47.00
$72.00
$110.00
(0)

Linalool acts as a ligand for OR9A2, facilitating receptor activation and subsequent olfactory neuron excitation through the classic olfactory transduction pathway.

Vanillin

121-33-5sc-251423
sc-251423A
100 g
500 g
$44.00
$124.00
1
(1)

Vanillin directly activates OR9A2, which increases the receptor's ability to initiate the olfactory transduction cascade, resulting in a heightened sensory perception.