XE-991 - Moligand™, ≥98% , Inhibitor of K v7.1;Inhibitor of K v7.2;Inhibitor of K v7.4;Inhibitor of K v7.5, CAS No.122955-42-4, Inhibitor of K v7.1;Inhibitor of K v7.2;Inhibitor of K v7.4;Inhibitor of K v7.5

CAS: 122955-42-4 Cat. No.: X335126 Molecular Weight: 376.45 EC Number: 687-389-6 PubChem CID: 45073462
AVAILABLE TO ORDER
GRADE & PURITY Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%
Synonyms
XE 991 | SR-01000597960-1 | XE 991 dihydrochloride | s2967 | XE991Dihydrochloride | 10,10-bis(pyridin-4-ylmethyl)anthracen-9(10H)-one dihydrochloride | 10,10-Bis[(pyridin-4-yl)methyl]anthracen-9(10H)-one--hydrogen chloride (1/2) | XE-991 2HCl | DTXSID6066
Storage
Store at 2-8°C,Desiccated
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5mg
X335126-5mg
5

$78.90

$118.90
Save $40.00 (33.64%)
10mg
X335126-10mg
5

$141.90

$212.90
Save $71.00 (33.35%)
25mg
X335126-25mg
4

$308.90

$463.90
Save $155.00 (33.41%)
50mg
X335126-50mg
2

$555.90

$833.90
Save $278.00 (33.34%)
100mg
X335126-100mg
1

$945.90

$1,418.90
Save $473.00 (33.34%)
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Why this grade

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

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Storage & shipping

Store at 2-8°C,Desiccated Ships Wet ice 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

XE 991 dihydrochloride is a potent and selective blocker of KCNQ voltage-gated potassium channels. Blocks KCNQ2|+3|/M-currents (IC|50|= 0.6-0.98 μM) and KCNQ1 homomeric channels (IC|50|= 0.75 μM) but is less potent against KCNQ1/minK channels (IC|50|= 11.1 μM).

Specifications

Synonyms
XE 991 | SR-01000597960-1 | XE 991 dihydrochloride | s2967 | XE991Dihydrochloride | 10, 10-bis(pyridin-4-ylmethyl)anthracen-9(10H)-one dihydrochloride | 10, 10-Bis[(pyridin-4-yl)methyl]anthracen-9(10H)-one--hydrogen chloride (1/2) | XE-991 2HCl | DTXSID6066
Specifications & Purity
Moligand™, ≥98%
Biochemical and Physiological Mechanisms
XE-991 is a KCNQ channel blocker; it is more potent than Linoperidine (Cat# L-134).
Storage
Store at 2-8°C, Desiccated
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Grade
Moligand™
Action Type
INHIBITOR
Mechanism of action
Inhibitor of K v7.1;Inhibitor of K v7.2;Inhibitor of K v7.4;Inhibitor of K v7.5
Purity
≥98%
Names and Identifiers
Pubchem Sid488201133
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488201133
Canonical SmilesC1=CC=C2C(=C1)C(=O)C3=CC=CC=C3C2(CC4=CC=NC=C4)CC5=CC=NC=C5.Cl.Cl
IUPAC Name10,10-bis(pyridin-4-ylmethyl)anthracen-9-one;dihydrochloride
InChIKeyWOGWMARIFDNZON-UHFFFAOYSA-N
INCHI1S/C26H20N2O.2ClH/c29-25-21-5-1-3-7-23(21)26(17-19-9-13-27-14-10-19,18-20-11-15-28-16-12-20)24-8-4-2-6-22(24)25;;/h1-16H,17-18H2;2*1H
Isomeric SMILES C1=CC=C2C(=C1)C(=O)C3=CC=CC=C3C2(CC4=CC=NC=C4)CC5=CC=NC=C5.Cl.Cl
RTECS CB1530000
PubChem CID 45073462
Molecular Weight 376.45

Documentation

📋 Safety Data Sheet (SDS)

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

Download SDS →

✅ Certificate of Analysis (COA)

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

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassAnthracenes
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentAnthracenes
Alternative Parents Aryl ketones  Pyridines and derivatives  Heteroaromatic compounds  Azacyclic compounds  Organonitrogen compounds  Organic oxides  Hydrochlorides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Anthracene - Aryl ketone - Pyridine - Heteroaromatic compound - Ketone - Azacycle - Organoheterocyclic compound - Organic nitrogen compound - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Hydrochloride - Organooxygen compound - Organonitrogen compound - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as anthracenes. These are organic compounds containing a system of three linearly fused benzene rings.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
CYP3A4 Tclin Cytochrome P450 3A4 (0 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
KCNQ4 Tclin Potassium voltage-gated channel subfamily KQT member 4 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
KCNQ5 Tclin Potassium voltage-gated channel subfamily KQT member 5 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
KCNQ2 Tclin Potassium voltage-gated channel subfamily KQT member 2 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
KCNQ1 Tclin Potassium voltage-gated channel subfamily KQT member 1 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
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
C23201148Certificate of AnalysisJan 19, 2026 X335126
C23201149Certificate of AnalysisJan 19, 2026 X335126
C23201150Certificate of AnalysisJan 19, 2026 X335126
C23201151Certificate of AnalysisJan 19, 2026 X335126
C23201153Certificate of AnalysisJan 19, 2026 X335126
C23201154Certificate of AnalysisJan 19, 2026 X335126
C23201155Certificate of AnalysisJan 19, 2026 X335126
C23201156Certificate of AnalysisJan 19, 2026 X335126
C23201161Certificate of AnalysisJan 19, 2026 X335126
C23201152Certificate of AnalysisDec 19, 2022 X335126
Chemical and Physical Properties
SolubilitySoluble in DMSO (12 mg/mL).
Molecular Weight449.400 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count3
Rotatable Bond Count4
Exact Mass448.111 Da
Monoisotopic Mass448.111 Da
Topological Polar Surface Area42.900 Ų
Heavy Atom Count31
Formal Charge0
Complexity515.000
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 Count3
Solution Calculators
Reviews

Customer Reviews

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