Date published: 2025-12-24

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OR4A16 Inhibitors

OR4A16 inhibitors encompass a diverse range of chemical compounds that, through their interaction with various biological pathways, can indirectly lead to a decrease in the functional activity of the olfactory receptor OR4A16. These compounds do not directly bind to OR4A16 but instead influence biochemical pathways that are crucial for OR4A16's optimal functionality. For example, 1,2-dichlorobenzene can induce oxidative stress in olfactory receptor neurons, which may lead to a reduction in OR4A16 activity due to oxidative damage to the neurons themselves. Similarly, acrylamide can impair axonal transport in neurons, which is essential for the proper functioning of OR4A16 as it affects the transportation of necessary proteins and signaling molecules to and from the olfactory receptor site. On the other hand, compounds like bisphenol A and triclosan interfere with hormonal regulation, which could lead to a downregulation of OR4A16 expression or function. Heavy metals such as cadmium and lead mimic or displace essential ions in the body, disrupting ion-dependent signaling pathways that are crucial for OR4A16's activation and signal transduction.
Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Cinnamic Aldehyde

104-55-2sc-294033
sc-294033A
100 g
500 g
$102.00
$224.00
(0)

Cinnamaldehyde is an agonist of the TRPA1 channel, which is co-expressed with olfactory receptors such as OR4A16 in olfactory sensory neurons. Activation of TRPA1 can lead to calcium influx, which indirectly reduces OR4A16 sensitivity by causing desensitization or adaptation of olfactory receptors.

Eugenol

97-53-0sc-203043
sc-203043A
sc-203043B
1 g
100 g
500 g
$31.00
$61.00
$214.00
2
(1)

Eugenol is a TRPM8 agonist, another channel expressed with olfactory receptors. TRPM8 activation by eugenol can alter the intracellular signaling pathways, leading to a decrease in the functional activity of OR4A16 by modulation of the calcium homeostasis within the olfactory sensory neurons.

Capsaicin

404-86-4sc-3577
sc-3577C
sc-3577D
sc-3577A
50 mg
250 mg
500 mg
1 g
$94.00
$173.00
$255.00
$423.00
26
(1)

Capsaicin is a selective agonist of the TRPV1 channel. Co-activation of TRPV1 in the olfactory system can decrease OR4A16 activity through depolarization-induced desensitization, which affects the olfactory receptor neurons' ability to respond to subsequent stimuli.

(±)-Menthol

89-78-1sc-250299
sc-250299A
100 g
250 g
$38.00
$67.00
(0)

Menthol acts as an agonist of TRPM8 channels. The activation of these channels can lead to changes in the sensory neuron's membrane potential and a subsequent decrease in OR4A16 signaling due to the desensitization of the olfactory signal transduction machinery.

Copper(II) sulfate

7758-98-7sc-211133
sc-211133A
sc-211133B
100 g
500 g
1 kg
$45.00
$120.00
$185.00
3
(1)

Copper ions can act as allosteric modulators of several receptors and may interact with histidine residues on OR4A16, potentially leading to a decreased affinity for its ligands and thus inhibiting its functional activity.

Zinc

7440-66-6sc-213177
100 g
$47.00
(0)

Zinc ions are known to modulate the activity of various receptors. By binding to specific sites on OR4A16, zinc ions can alter the receptor conformation and inhibit its ability to activate the associated G-protein and subsequent signal transduction.

Icilin

36945-98-9sc-201557
sc-201557A
10 mg
50 mg
$89.00
$252.00
9
(1)

Icilin is a synthetic super-agonist of TRPM8. Persistent activation of TRPM8 by icilin in olfactory neurons can inhibit OR4A16 activity by altering the calcium dynamics and signaling pathways within the neurons, leading to decreased sensitivity to odors.

Thymol

89-83-8sc-215984
sc-215984A
100 g
500 g
$97.00
$193.00
3
(0)

Thymol is known to modulate the activity of various ion channels including TRPM8. Given the co-expression with OR4A16, thymol-induced TRPM8 activation can lead to a decrease in OR4A16-mediated signaling due to changes in neuron membrane potentials and receptor desensitization.

Allyl isothiocyanate

57-06-7sc-252361
sc-252361A
sc-252361B
5 g
100 g
500 g
$43.00
$66.00
$117.00
3
(1)

This compound is an agonist for TRPA1 channels. The activation of TRPA1 can inhibit OR4A16 by causing neuron desensitization and interfering with the receptor's normal response to its ligands, leading to decreased signal transduction efficiency.

HC-030031

349085-38-7sc-203994
sc-203994A
10 mg
50 mg
$87.00
$326.00
2
(1)

HC-030031 is a selective antagonist of the TRPA1 channel. Despite being an antagonist, prolonged inhibition of TRPA1 can lead to compensatory mechanisms in sensory neurons that reduce OR4A16 activity, possibly due to changes in intracellular signaling cascades.