SKA-31 - Moligand™, ≥97% , Activator of K Ca2.1;Activator of K Ca2.2;Activator of K Ca2.3;Activator of K Ca3.1, CAS No.40172-65-4, Activator of K Ca2.1;Activator of K Ca2.2;Activator of K Ca2.3;Activator of K Ca3.1

CAS: 40172-65-4 Cat. No.: N135127 Molecular Weight: 200.26 EC Number: 254-822-1
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. ≥97%
Synonyms
benzo[e][1,3]benzothiazol-2-amine | 2-Aminonaphthiazole | F1386-0401 | BDBM31193 | Ici-118,587 hemifumarate | 2-Amino-.beta.-naphthothiazole | Guggulsterone, (E)- | HB1050 | 2-Aminonaphtho(1,2-d)thiazole | 2-AMINO-NAPHTHO[1,2-D]THIAZOLE | 2-Aminonaphtho[1
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25mg
N135127-25mg
3
$52.90
50mg
N135127-50mg
3
$71.90
250mg
N135127-250mg
2
$174.90
1g
N135127-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$535.90
Enter a quantity for the sizes you want to add.
🧪

Why this grade

Moligand™, ≥97% Moligand™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

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

📋

Quality documents

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

📚

Literature proof

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

Overview

SKA-31 is a potent potassium channel activator with EC50s of 260 nM, 1.9 μM, 2.9 μM, and 2.9 μM for KCa3.1, KCa2.2, KCa2.1 and KCa2.3, respectively. SKA-31 potentiates endothelium-derived hyperpolarizing factor response and lowers blood pressure

Specifications

Synonyms
benzo[e][1, 3]benzothiazol-2-amine | 2-Aminonaphthiazole | F1386-0401 | BDBM31193 | Ici-118, 587 hemifumarate | 2-Amino-.beta.-naphthothiazole | Guggulsterone, (E)- | HB1050 | 2-Aminonaphtho(1, 2-d)thiazole | 2-AMINO-NAPHTHO[1, 2-D]THIAZOLE | 2-Aminonaphtho[1
Specifications & Purity
Moligand™, ≥97%
Biochemical and Physiological Mechanisms
SKA-31 is an activator of KCa2 and KCa3.1 calcium-activated potassium channels. Its EC50 is almost identical at 2-3 μM for all KCa2 subtypes, and about 10-fold lower (260 nM) at KCa3.1 channels. It has significant blood-pressure reducing activity in exper
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.
Grade
Moligand™
Action Type
ACTIVATOR
Mechanism of action
Activator of K Ca2.1;Activator of K Ca2.2;Activator of K Ca2.3;Activator of K Ca3.1
Note
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Purity
≥97%
Names and Identifiers
Canonical SmilesC1=CC=C2C(=C1)C=CC3=C2N=C(S3)N
IUPAC Namebenzo[e][1,3]benzothiazol-2-amine
InChIKeyFECQXVPRUCCUIL-UHFFFAOYSA-N
INCHI1S/C11H8N2S/c12-11-13-10-8-4-2-1-3-7(8)5-6-9(10)14-11/h1-6H,(H2,12,13)
Isomeric SMILES C1=CC=C2C(=C1)C=CC3=C2N=C(S3)N
Molecular Weight 200.26
Reaxy-Rn 152877
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=152877&ln=

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
SuperclassOrganoheterocyclic compounds
ClassNaphthothiazoles
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentNaphthothiazoles
Alternative Parents Naphthalenes  Benzothiazoles  2-amino-1,3-thiazoles  Heteroaromatic compounds  Azacyclic compounds  Primary amines  Organopnictogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Naphthothiazole - Naphthalene - 1,3-benzothiazole - Benzenoid - 1,3-thiazol-2-amine - Azole - Thiazole - Heteroaromatic compound - Azacycle - Primary amine - Organonitrogen compound - Hydrocarbon derivative - Organopnictogen compound - Organic nitrogen compound - Amine - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as naphthothiazoles. These are polycyclic aromatic compounds containing a thiazole fused to a naphthalene. Thiazole is a 5-membered aromatic ring containing three carbon, one oxygen, and one nitrogen atom. Naphthalene is a polycyclic aromatic hydrocarbon made up of two fused benzene rings.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
KCNN4 Tchem Intermediate conductance calcium-activated potassium channel protein 4 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
KCNN1 Tchem Small conductance calcium-activated potassium channel protein 1 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
KCNN3 Tchem Small conductance calcium-activated potassium channel protein 3 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
KCNN2 Tchem Small conductance calcium-activated potassium channel protein 2 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
GNAS Tbio Guanine nucleotide-binding protein G(s), subunit alpha (103405 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
BRCA1 Tchem Breast cancer type 1 susceptibility protein (15908 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SNCA Tchem Alpha-synuclein (10960 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Hdac6 Histone deacetylase 6 (222 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
rep Replicase polyprotein 1ab (378 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Txnrd1 Thioredoxin reductase 1, cytoplasmic (45279 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
clpP ATP-dependent Clp protease proteolytic subunit (245 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.

4 results found

Lot NumberCertificate TypeDateItem
L2216918Certificate of AnalysisJun 09, 2026 N135127
L2216920Certificate of AnalysisJun 09, 2026 N135127
L2216923Certificate of AnalysisJun 09, 2026 N135127
G2014053Certificate of AnalysisNov 06, 2025 N135127
Chemical and Physical Properties
Solubilitysolubility DMSO: ≥30 mg/mL
Molecular Weight200.260 g/mol
XLogP33.300
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count3
Rotatable Bond Count0
Exact Mass200.041 Da
Monoisotopic Mass200.041 Da
Topological Polar Surface Area67.200 Ų
Heavy Atom Count14
Formal Charge0
Complexity221.000
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
Reviews

Customer Reviews

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.