S-22153

Modify Date: 2026-07-01 17:21:13

S-22153 Structure
S-22153 structure
Common Name S-22153
CAS Number 180304-07-8 Molecular Weight 247.35600
Density N/A Boiling Point N/A
Molecular Formula C14H17NOS Melting Point N/A
MSDS N/A Flash Point N/A

 Use of S-22153


S-22153 is a potent melatonin receptor antagonist with EC50 values of 19 nM, 4.6 nM for hMT1 and hMT2 melatonin receptor, respectively. S-22153 has Ki values of 8.6 nM (CHO cells) and 16.3 nM (HEK cells) for hMT1, and 6.0 nM (CHO cells) and 8.2 nM (HEK cells) for hMT2. S-22153 is a specific ligand of MT1 and MT2 melatonin receptors subtypes[1][2].

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide

 S-22153 Biological Activity

This table contains bioactivity, target information and biological‑assay experimental data of this compound.

Description S-22153 is a potent melatonin receptor antagonist with EC50 values of 19 nM, 4.6 nM for hMT1 and hMT2 melatonin receptor, respectively. S-22153 has Ki values of 8.6 nM (CHO cells) and 16.3 nM (HEK cells) for hMT1, and 6.0 nM (CHO cells) and 8.2 nM (HEK cells) for hMT2. S-22153 is a specific ligand of MT1 and MT2 melatonin receptors subtypes[1][2].
Related Catalog
Target

MT1:19 nM (EC50)

MT2:4.6 nM (EC50)

In Vivo S-22153 sets the temperature and activity periods to approximately 24 hr and increase the circadian amplitude of both rhythms in mice, which exposed to continuous light[1] . Animal Model: 7 weeks old Male B6D2F1 mice, which exposed to continuous light for 10-18 days[1] Dosage: 20 mg/kg Administration: Daily intraperitoneal (i.p.) for 19 days Result: Set the temperature and activity periods to approximately 24 hr and increased the circadian amplitude of both rhythms in mice, which exposed to continuous light.
References

[1]. Li XM, et al. Circadian rhythm entrainment with melatonin, melatonin receptor antagonist S22153 or their combination in mice exposed to constant light. J Pineal Res. 2004;37(3):176-184.

[2]. Audinot V, et al. New selective ligands of human cloned melatonin MT1 and MT2 receptors. Naunyn Schmiedebergs Arch Pharmacol. 2003;367(6):553-561.

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Molecular Formula C14H17NOS
Molecular Weight 247.35600
Exact Mass 247.10300
PSA 60.83000
LogP 3.98260
InChIKey PICRXJDULXLJCZ-UHFFFAOYSA-N
SMILES CCc1ccc2scc(CCNC(C)=O)c2c1

 S-22153Bioassay

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This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Human MT2 receptor (Melatonin receptors)
Source: IUPHAR-DB
Target: MT2 receptor (Melatonin receptors) [Homo sapiens]
External Id: 288_Human
Name: Human MT1 receptor (Melatonin receptors)
Source: IUPHAR-DB
Target: MT1 receptor (Melatonin receptors) [Homo sapiens]
External Id: 287_Human
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 S-22153 | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the molecular formula of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide?
A: Molecular formula of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide is C14H17NOS.
Q: What is the polar surface area (PSA) of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide?
A: Polar surface area (PSA) of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide is 60.83000.
Q: What is the InChIKey of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide?
A: InChIKey of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide is PICRXJDULXLJCZ-UHFFFAOYSA-N.
Q: What is the CAS number of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide?
A: CAS number of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide is 180304-07-8.
Q: What is the Chinese name of 180304-07-8?
A: Chinese name of 180304-07-8 is 180304-07-8.
Q: What are the uses of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide?
A: Main uses of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide: S-22153 is a potent melatonin receptor antagonist with EC50 values of 19 nM, 4.6 nM for hMT1 and hMT2 melatonin receptor, respectively. S-22153 has Ki values of 8.6 nM (CHO cells) and 16.3 nM (HEK cells) for hMT1, and 6.0 nM (CHO cells) and 8.2 nM (HEK cells) for hMT2. S-22153 is a specific ligand of MT1 and MT2 melatonin receptors subtypes[1][2].
Q: What is the English name of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide?
A: The English name of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide is N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide.
Q: What is the LogP of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide?
A: LogP of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide is 3.98260.
Q: What is the SMILES notation of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide?
A: SMILES notation of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide is CCc1ccc2scc(CCNC(C)=O)c2c1.
Q: What is the molecular weight of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide?
A: Molecular weight of N-[2-(5-Ethyl-1-benzothiophen-3-yl)ethyl]acetamide is 247.35600.

 S-22153factory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

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