Istaroxime , Sarcoplasmic/endoplasmic reticulum calcium ATPase 2 activator, CAS No.203737-93-3, Sarcoplasmic/endoplasmic reticulum calcium ATPase 2 activator

CAS: 203737-93-3 Cat. No.: I125411 Molecular Weight: 360.49 PubChem CID: 9841834
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Synonyms
UNII-W40687GO3S | Istaroxime [INN] | W8I9H2TPPL | Androstane-3,6,17-trione, 3-(O-(2-aminoethyl)oxime), (3E,5alpha)- | Debio-0614 | (3E,5S,8R,9S,10R,13S,14S)-3-(2-aminoethoxyimino)-10,13-dimethyl-1,2,4,5,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenant
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
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Size
Status
Price
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5mg
I125411-5mg
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$649.90
10mg
I125411-10mg
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$903.90
25mg
I125411-25mg
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$1,582.90
50mg
I125411-50mg
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$2,531.90
100mg
I125411-100mg
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$3,831.90
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Why this grade

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.

Specifications

Synonyms
UNII-W40687GO3S | Istaroxime [INN] | W8I9H2TPPL | Androstane-3, 6, 17-trione, 3-(O-(2-aminoethyl)oxime), (3E, 5alpha)- | Debio-0614 | (3E, 5S, 8R, 9S, 10R, 13S, 14S)-3-(2-aminoethoxyimino)-10, 13-dimethyl-1, 2, 4, 5, 7, 8, 9, 11, 12, 14, 15, 16-dodecahydrocyclopenta[a]phenant
Biochemical and Physiological Mechanisms

Description:
IC50 Value: 0.43 ± 0.15 μM (Na+/K+-ATPase activity from dog kidney) [1]
Istaroxime is a positive inotropic agent that mediates its action through inhibition of sodium/potassium adenosine triphosphatase (Na

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
INHIBITOR
Mechanism of action
Sarcoplasmic/endoplasmic reticulum calcium ATPase 2 activator
Names and Identifiers
Canonical SmilesCC12CCC(=NOCCN)CC1C(=O)CC3C2CCC4(C3CCC4=O)C
IUPAC Name(3E,5S,8R,9S,10R,13S,14S)-3-(2-aminoethoxyimino)-10,13-dimethyl-1,2,4,5,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-6,17-dione
InChIKeyMPYLDWFDPHRTEG-PAAYLBSLSA-N
INCHI1S/C21H32N2O3/c1-20-7-5-13(23-26-10-9-22)11-17(20)18(24)12-14-15-3-4-19(25)21(15,2)8-6-16(14)20/h14-17H,3-12,22H2,1-2H3/b23-13+/t14-,15-,16-,17+,20+,21-/m0/s1
Isomeric SMILES C[C@]12CC/C(=N\OCCN)/C[C@@H]1C(=O)C[C@@H]3[C@@H]2CC[C@]4([C@H]3CCC4=O)C
PubChem CID 9841834
Molecular Weight 360.49

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
SuperclassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
SubclassAndrostane steroids
Intermediate Tree Nodes Not available
Direct ParentAndrostane steroids
Alternative Parents 6-oxosteroids  17-oxosteroids  Oxime ethers  Ketones  Organic oxides  Monoalkylamines  Hydrocarbon derivatives  
Molecular FrameworkAliphatic homopolycyclic compounds
Substituents Androstane-skeleton - 17-oxosteroid - Oxosteroid - 6-oxosteroid - Ketone - Oxime ether - Organic oxide - Organic oxygen compound - Amine - Organooxygen compound - Organonitrogen compound - Primary aliphatic amine - Carbonyl group - Organic nitrogen compound - Primary amine - Hydrocarbon derivative - Aliphatic homopolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as androstane steroids. These are steroids with a structure based on the 19-carbon androstane skeleton.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
ATP12A Tchem Potassium-transporting ATPase alpha chain 2 (0 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
ATP1A1 Tclin Sodium/potassium-transporting ATPase alpha-1 chain (7 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
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
Solubility25°C: 10 mM in distilled water
Molecular Weight360.500 g/mol
XLogP31.500
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count5
Rotatable Bond Count3
Exact Mass360.241 Da
Monoisotopic Mass360.241 Da
Topological Polar Surface Area81.800 Ų
Heavy Atom Count26
Formal Charge0
Complexity645.000
Isotope Atom Count0
Defined Atom Stereocenter Count6
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count1
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds1
Covalently-Bonded Unit Count1
Solution Calculators
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