NS-1619 is a selective large conductance Ca2+-activated K+-channel activator.
A selective large conductance calcium activated potassium channel activator

Specifications

Synonyms

Specifications & Purity

Moligand™, ≥98%

Biochemical and Physiological Mechanisms

NS-1619 is a selective MaxiKα (large conductance calcium activated potassium channel) activator. In neutrophils, NS-1619 activation of BKCa channels increased alkalinization of phagocytic vacuoles.Potent and selective K Ca 1.1 channel activator. Induces a

Storage

Room temperature

Shipped In

Normal

Grade

Moligand™

Action Type

ACTIVATOR

Mechanism of action

Activator of K Ca1.1;Activator of K Ca5.1

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

≥98%

Names and Identifiers

Pubchem Sid	504750781
Pubchem Sid Url	https://pubchem.ncbi.nlm.nih.gov/substance/504750781
Canonical Smiles	C1=CC2=C(C=C1C(F)(F)F)NC(=O)N2C3=C(C=CC(=C3)C(F)(F)F)O
IUPAC Name	3-[2-hydroxy-5-(trifluoromethyl)phenyl]-6-(trifluoromethyl)-1H-benzimidazol-2-one
InChIKey	YLFMCMWKHSDUCT-UHFFFAOYSA-N
INCHI	1S/C15H8F6N2O2/c16-14(17,18)7-1-3-10-9(5-7)22-13(25)23(10)11-6-8(15(19,20)21)2-4-12(11)24/h1-6,24H,(H,22,25)
Isomeric SMILES	C1=CC2=C(C=C1C(F)(F)F)NC(=O)N2C3=C(C=CC(=C3)C(F)(F)F)O
Molecular Weight	362.23
Reaxy-Rn	8165035
Reaxys-RN_link_address	https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=8165035&ln=

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.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

Kingdom Organic compounds
- Superclass Organoheterocyclic compounds
  - Class Benzimidazoles
    - Subclass Phenylbenzimidazoles

Kingdom	Organic compounds
Superclass	Organoheterocyclic compounds
Class	Benzimidazoles
Subclass	Phenylbenzimidazoles
Intermediate Tree Nodes	Not available
Direct Parent	Phenylbenzimidazoles
Alternative Parents	Phenylimidazoles Trifluoromethylbenzenes 1-hydroxy-2-unsubstituted benzenoids N-substituted imidazoles Heteroaromatic compounds Ureas Azacyclic compounds Organopnictogen compounds Organooxygen compounds Organonitrogen compounds Organofluorides Organic oxides Hydrocarbon derivatives Alkyl fluorides
Molecular Framework	Aromatic heteropolycyclic compounds
Substituents	Phenylbenzimidazole - 1-phenylimidazole - Trifluoromethylbenzene - Phenol - 1-hydroxy-2-unsubstituted benzenoid - Monocyclic benzene moiety - N-substituted imidazole - Benzenoid - Heteroaromatic compound - Azole - Imidazole - Urea - Azacycle - Organic oxide - Organic nitrogen compound - Organooxygen compound - Organonitrogen compound - Organofluoride - Organohalogen compound - Alkyl halide - Organic oxygen compound - Alkyl fluoride - Organopnictogen compound - Hydrocarbon derivative - Aromatic heteropolycyclic compound
Description	This compound belongs to the class of organic compounds known as phenylbenzimidazoles. These are compounds containing a phenylbenzimidazole skeleton, which consists of a benzimidazole moiety where its imidazole ring is attached to a phenyl group.
External Descriptors	phenols - benzimidazoles - (trifluoromethyl)benzenes
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

3D Structure

Associated Targets(Human)

CYP2C19 Tchem Cytochrome P450 2C19 (1 Activities)

Discover Target: CYP2C19

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

CYP2C9 Tchem Cytochrome P450 2C9 (1 Activities)

Discover Target: CYP2C9

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

KCNU1 Tbio Potassium channel subfamily U member 1 (0 Activities)

Discover Target: KCNU1

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

KCNMA1 Tclin Calcium-activated potassium channel subunit alpha-1 (1 Activities)

Discover Target: KCNMA1

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

VDR Tclin Vitamin D receptor (26531 Activities)

Discover Target: VDR

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

TSHR Tclin Thyroid stimulating hormone receptor (29986 Activities)

Discover Target: TSHR

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

DRD1 Tclin Dopamine D1 receptor (9720 Activities)

Discover Target: DRD1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

GBA1 Tclin Beta-glucocerebrosidase (14647 Activities)

Discover Target: GBA1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

HSP90AA1 Tchem Heat shock protein HSP 90-alpha (4115 Activities)

Discover Target: HSP90AA1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CYP2D6 Tclin Cytochrome P450 2D6 (33882 Activities)

Discover Target: CYP2D6

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

NFKB1 Tclin Nuclear factor NF-kappa-B p105 subunit (1459 Activities)

Discover Target: NFKB1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

KCNMA1 Tclin Calcium-activated potassium channel subunit alpha-1 (435 Activities)

Discover Target: KCNMA1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CYP1A2 Tchem Cytochrome P450 1A2 (26471 Activities)

Discover Target: CYP1A2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

PIN1 Tchem Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1 (36611 Activities)

Discover Target: PIN1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CYP2C9 Tchem Cytochrome P450 2C9 (32119 Activities)

Discover Target: CYP2C9

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CYP2C19 Tchem Cytochrome P450 2C19 (29246 Activities)

Discover Target: CYP2C19

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CYP3A4 Tclin Cytochrome P450 3A4 (53859 Activities)

Discover Target: CYP3A4

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

HepG2 (196354 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

EHMT2 Tchem Histone-lysine N-methyltransferase, H3 lysine-9 specific 3 (93046 Activities)

Discover Target: EHMT2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

TDP1 Tchem Tyrosyl-DNA phosphodiesterase 1 (345557 Activities)

Discover Target: TDP1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

BLM Tchem Bloom syndrome protein (4248 Activities)

Discover Target: BLM

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

SMAD3 Tchem Mothers against decapentaplegic homolog 3 (68039 Activities)

Discover Target: SMAD3

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

PMP22 Tbio Peripheral myelin protein 22 (699 Activities)

Discover Target: PMP22

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

KMT2A Tchem Histone-lysine N-methyltransferase MLL (17327 Activities)

Discover Target: KMT2A

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CBX1 Tbio Chromobox protein homolog 1 (92434 Activities)

Discover Target: CBX1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

ATXN2 Tbio Ataxin-2 (54410 Activities)

Discover Target: ATXN2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

USP1 Tchem Ubiquitin carboxyl-terminal hydrolase 1 (22556 Activities)

Discover Target: USP1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

RAPGEF4 Tchem Rap guanine nucleotide exchange factor 4 (11476 Activities)

Discover Target: RAPGEF4

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

KEAP1 Tclin Kelch-like ECH-associated protein 1 (1736 Activities)

Discover Target: KEAP1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MEN1 Tchem Menin/Histone-lysine N-methyltransferase MLL (48157 Activities)

Discover Target: MEN1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Associated Targets(non-human)

ampC Beta-lactamase AmpC (62480 Activities)

Discover Target: ampC

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Saccharomyces cerevisiae (19171 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Plasmodium falciparum (966862 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

lef Anthrax lethal factor (7585 Activities)

Discover Target: lef

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Npsr1 Neuropeptide S receptor (260 Activities)

Discover Target: Npsr1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Txnrd1 Thioredoxin reductase 1, cytoplasmic (45279 Activities)

Discover Target: Txnrd1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Mapt Microtubule-associated protein tau (6 Activities)

Discover Target: Mapt

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

FTL Ferritin light chain (43324 Activities)

Discover Target: FTL

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

nfo Endonuclease 4 (425 Activities)

Discover Target: nfo

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

NS1 Nonstructural protein 1 (33327 Activities)

Discover Target: NS1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay 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.

1 results found

Lot Number	Certificate Type	Date	Item
E1704107	Certificate of Analysis	Jun 15, 2026	H131759

Chemical and Physical Properties

Solubility	Soluble in ethanol (26.6 mg/ml), DMSO (5.3 mg/ml), 45% (w/v) aq 2-hydroxypropyl-β-cyclodextrin (0.47 mg/ml), and 0.1 M NaOH (5.2 mg/ml). Insoluble in water
Sensitivity	Air Sensitive
Refractive Index	1.54
Melt Point(°C)	178.44°C
Molecular Weight	362.230 g/mol
XLogP3	3.700
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	8
Rotatable Bond Count	1
Exact Mass	362.049 Da
Monoisotopic Mass	362.049 Da
Topological Polar Surface Area	52.600 Å²
Heavy Atom Count	25
Formal Charge	0
Complexity	523.000
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	1

Solution Calculators

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Reviews

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NS-1619 - Moligand™, ≥98% , Activator of K Ca1.1;Activator of K Ca5.1, CAS No.153587-01-0, Activator of K Ca1.1;Activator of K Ca5.1

Why this grade

Storage & shipping

Quality documents

Literature proof

Overview

Specifications

Documentation

📋 Safety Data Sheet (SDS)

✅ Certificate of Analysis (COA)

📊 Datasheet

🔬 Specification Sheet

Advanced Data

Molarity Calculator

Dilution Calculator

Reconstitution Calculator

Customer Reviews

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