Date published: 2026-4-26

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OR51B4 Inhibitors

OR51B4 inhibitors belong to a unique class of chemicals that specifically target and modulate the function of the olfactory receptor OR51B4. This receptor is part of the olfactory receptor family, a group of G-protein-coupled receptors (GPCRs) which are known for their critical roles in the detection of odorant molecules. The OR51B4 receptor, like other olfactory receptors, is primarily located in the olfactory epithelium, the specialized sensory tissue within the nasal cavity that is responsible for the sense of smell. Inhibitors of OR51B4 interact with this receptor by binding to specific sites, which in turn alters the receptor's ability to engage with its natural ligands – the molecules that typically bind to these receptors to initiate a signal transduction pathway that eventually results in the perception of an odor. The inhibition of OR51B4 is a complex process that involves the interaction of these inhibitors with the receptor, effectively preventing the normal activation by their natural odorant ligands. The specific binding of these inhibitors can alter the conformation of the OR51B4 receptor, which leads to a decrease in its activity. As with other GPCRs, the impact of inhibition is a consequence of the intricate balance between the receptor's active and inactive states. OR51B4 inhibitors are designed to stabilize the inactive state, thus reducing the receptor's ability to respond to its ligands.
Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Zinc

7440-66-6sc-213177
100 g
$48.00
(0)

Zinc ions are known to bind to various proteins, often resulting in conformational changes that can hinder protein function. The exact mechanism of zinc inhibition in olfactory receptors isn't fully understood, but it's believed that zinc might interfere with the receptor's ability to bind its natural ligands or might hinder intracellular signaling pathways involved in olfactory perception.

Copper(II) sulfate

7758-98-7sc-211133
sc-211133A
sc-211133B
100 g
500 g
1 kg
$46.00
$122.00
$189.00
3
(1)

Like zinc, copper ions can bind to and alter the function of various proteins. Copper may inhibit olfactory receptors in a manner similar to zinc, by interfering with ligand binding or intracellular signaling.

Nifedipine

21829-25-4sc-3589
sc-3589A
1 g
5 g
$59.00
$173.00
15
(1)

Nifedipine is a calcium channel blocker commonly used for hypertension. In the context of olfactory receptors, blocking calcium channels might hinder the receptor's ability to propagate an electrical signal upon activation, thereby suppressing the olfactory response.

Ruthenium red

11103-72-3sc-202328
sc-202328A
500 mg
1 g
$188.00
$250.00
13
(1)

An inorganic compound that inhibits certain types of ion channels. Ruthenium red can block certain calcium channels, which play a role in olfactory signal transduction. This can lead to decreased olfactory receptor activity.

Genistein

446-72-0sc-3515
sc-3515A
sc-3515B
sc-3515C
sc-3515D
sc-3515E
sc-3515F
100 mg
500 mg
1 g
5 g
10 g
25 g
100 g
$45.00
$164.00
$200.00
$402.00
$575.00
$981.00
$2031.00
46
(1)

A naturally occurring isoflavone, often studied for its potential health benefits. Genistein inhibits tyrosine kinases, which are involved in various cellular signaling pathways, including those in olfactory receptors.

Quinine

130-95-0sc-212616
sc-212616A
sc-212616B
sc-212616C
sc-212616D
1 g
5 g
10 g
25 g
50 g
$79.00
$104.00
$166.00
$354.00
$572.00
1
(0)

The exact mechanism of quinine's inhibition of olfactory receptors is not well-understood, but it might interfere with receptor activation or signaling.

Lidocaine

137-58-6sc-204056
sc-204056A
50 mg
1 g
$51.00
$131.00
(0)

A local anesthetic used to block nerve signal transduction. By blocking sodium channels, lidocaine can prevent the propagation of electrical signals, potentially suppressing olfactory receptor activation.

Silver nitrate

7761-88-8sc-203378
sc-203378A
sc-203378B
25 g
100 g
500 g
$114.00
$378.00
$1081.00
1
(1)

A chemical used in various applications, including photograph. Silver nitrate is known to damage the olfactory epithelium. While this doesn't directly inhibit the receptor, damage to the olfactory epithelium would result in decreased olfactory receptor function.

Methimazole

60-56-0sc-205747
sc-205747A
10 g
25 g
$70.00
$112.00
4
(0)

Methimazole is known to cause damage to the olfactory epithelium, which would result in decreased olfactory receptor activity.