Nelotanserin - ≥98% , Serotonin 2a (5-HT2a) receptor inverse agonist, CAS No.839713-36-9, Serotonin 2a (5-HT2a) receptor inverse agonist

CAS: 839713-36-9 Cat. No.: N646312 Molecular Weight: 437.24 PubChem CID: 11683556
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
Nelotanserin (USAN/INN) | Nelotanserin [USAN:INN] | UNII-4ZA73QEW2P | AKOS016313895 | SB19023 | BDBM50324541 | APD 125 | CHEBI:177438 | 1-[3-(4-bromo-2-methylpyrazol-3-yl)-4-methoxyphenyl]-3-(2,4-diluorophenyl)urea | AKOS027255058 | APD125(Nelotanserin) |
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Nelotanserin is a potent 5-HT 2A inverse agonist, a moderately potent 5-HT 2C partial inverse agonist and a weak 5-HT 2B inverse agonist, with IC 50 s of 1.7, 79, 791 nM in IP accumulation assays, respectively.

In Vitro

Results from IP accumulation assays suggest that Nelotanserin is a potent 5-HT 2A full inverse agonist (IC 50 =1.7 nM), a moderately potent 5-HT 2C partial inverse agonist (IC 50 =79 nM) (maximal response was 62% of the response obtained for the reference inverse agonist clozapine), and a weak 5-HT 2B inverse agonist (IC 50 =791 nM). Nelotanserin displays high affinity for recombinant human 5-HT 2A receptors (K i =0.35 nM), moderate affinity for human 5-HT 2C receptors (K i =100 nM), and low affinity for human 5-HT 2B receptors (2000 nM) stably expressed in HEK293 cells. The results suggest that Nelotanserin has a 262-fold higher affinity for human 5-HT 2A than 5-HT 2C receptors and a 6610-fold higher affinity for human 5-HT 2A than 5-HT 2B receptors. MCE has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Each compound is tested in a minimum of five rats by oral gavage with administration occurring in the middle of the inactive period, 6 h after light onset. The delta power during non-REM sleep (NREMS) is significantly different between all the analogues tested and the vehicle control. Nelotanserin (Compound 39) produces significant increases in delta power that persist for the first 4 h following dosing. Significant differences are found, however, in NREMS bout length. Nelotanserin significantly increases NREMS bout length during the first hour following dosing, and 3 does so during the second hour. In conjunction with this increased NREM bout duration, the number of NREM bouts decrease during the first hour for Nelotanserin (p<0.01) as well as for compound 15 (p<0.05). MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Form:Solid

IC50& Target:5-HT 2A Receptor 1.7 nM (IC 50 ) 5-HT 2C Receptor 79 nM (IC 50 ) 5-HT 2B Receptor 791 nM (IC 50 )

Specifications

Synonyms
Nelotanserin (USAN/INN) | Nelotanserin [USAN:INN] | UNII-4ZA73QEW2P | AKOS016313895 | SB19023 | BDBM50324541 | APD 125 | CHEBI:177438 | 1-[3-(4-bromo-2-methylpyrazol-3-yl)-4-methoxyphenyl]-3-(2, 4-diluorophenyl)urea | AKOS027255058 | APD125(Nelotanserin) |
Specifications & Purity
≥98%
Biochemical and Physiological Mechanisms
Nelotanserin is a potent 5-HT 2A inverse agonist, a moderately potent 5-HT 2C partial inverse agonist and a weak 5-HT 2B inverse agonist, with IC 50 s of 1.7, 79, 791 nM in IP accumulation assays, respectively.
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Action Type
INVERSE AGONIST
Mechanism of action
Serotonin 2a (5-HT2a) receptor inverse agonist
Purity
≥98%
Product Properties
ALogP3.3
Names and Identifiers
Pubchem Sid528766374
Canonical SmilesCN1C(=C(C=N1)Br)C2=C(C=CC(=C2)NC(=O)NC3=C(C=C(C=C3)F)F)OC
IUPAC Name1-[3-(4-bromo-2-methylpyrazol-3-yl)-4-methoxyphenyl]-3-(2,4-difluorophenyl)urea
InChIKeyCOSPVUFTLGQDQL-UHFFFAOYSA-N
INCHI1S/C18H15BrF2N4O2/c1-25-17(13(19)9-22-25)12-8-11(4-6-16(12)27-2)23-18(26)24-15-5-3-10(20)7-14(15)21/h3-9H,1-2H3,(H2,23,24,26)
Isomeric SMILES CN1C(=C(C=N1)Br)C2=C(C=CC(=C2)NC(=O)NC3=C(C=C(C=C3)F)F)OC
PubChem CID 11683556
Molecular Weight 437.24

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

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✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassAzoles
SubclassPyrazoles
Intermediate Tree Nodes Not available
Direct ParentPhenylpyrazoles
Alternative Parents N-phenylureas  Methoxyanilines  Phenoxy compounds  Anisoles  Methoxybenzenes  Alkyl aryl ethers  Fluorobenzenes  Aryl bromides  Aryl fluorides  Heteroaromatic compounds  Ureas  Azacyclic compounds  Carbonyl compounds  Organonitrogen compounds  Organic oxides  Organobromides  Organofluorides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Phenylpyrazole - N-phenylurea - Methoxyaniline - Phenoxy compound - Anisole - Phenol ether - Methoxybenzene - Alkyl aryl ether - Halobenzene - Fluorobenzene - Aryl bromide - Aryl fluoride - Monocyclic benzene moiety - Aryl halide - Benzenoid - Heteroaromatic compound - Urea - Ether - Azacycle - Organic nitrogen compound - Organohalogen compound - Organobromide - Organofluoride - Carbonyl group - Organonitrogen compound - Organooxygen compound - Hydrocarbon derivative - Organic oxide - Organic oxygen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as phenylpyrazoles. These are compounds containing a phenylpyrazole skeleton, which consists of a pyrazole bound to a phenyl group.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
HTR2A Tclin 5-hydroxytryptamine receptor 2A (3 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
HTR2A Tclin Serotonin 2a (5-HT2a) receptor (14758 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HTR2C Tclin Serotonin 2c (5-HT2c) receptor (11471 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Rattus norvegicus (775804 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Brain (1 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Plasma (328 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

10 results found

Lot NumberCertificate TypeDateItem
C2511501Certificate of AnalysisOct 31, 2024 N646312
C2511502Certificate of AnalysisOct 31, 2024 N646312
C2511517Certificate of AnalysisOct 31, 2024 N646312
C2511518Certificate of AnalysisOct 31, 2024 N646312
C2511519Certificate of AnalysisOct 31, 2024 N646312
C2511520Certificate of AnalysisOct 31, 2024 N646312
C2511523Certificate of AnalysisOct 31, 2024 N646312
C2511524Certificate of AnalysisOct 31, 2024 N646312
C2511537Certificate of AnalysisOct 31, 2024 N646312
C2511538Certificate of AnalysisOct 31, 2024 N646312
Chemical and Physical Properties
SolubilityDMSO : ≥ 32 mg/mL (73.19 mM)
Molecular Weight437.200 g/mol
XLogP33.300
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count4
Exact Mass436.035 Da
Monoisotopic Mass436.035 Da
Topological Polar Surface Area68.200 Ų
Heavy Atom Count27
Formal Charge0
Complexity518.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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