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Sigma-Aldrich

Ouabain octahydrate

≥95% (HPLC), solid, Na⁺,K⁺-ATPase inhibitor, Calbiochem®

Synonym(s):

Ouabain, Octahydrate, Strophanthin G

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About This Item

Empirical Formula (Hill Notation):
C29H44O12 · 8H2O
CAS Number:
11018-89-6
Molecular Weight:
728.77
MDL number:
MFCD00149240
UNSPSC Code:
12352200
NACRES:
NA.77

product name

Ouabain, Octahydrate, Inhibits Na+,K+-ATPase.

Quality Level

100

assay

≥95% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

white to off-white

solubility

hot water: 10 mg/mL
room-temperature water: insoluble

shipped in

ambient

storage temp.

2-8°C

InChI

1S/C29H44O12.8H2O/c1-13-22(34)23(35)24(36)25(40-13)41-15-8-19(32)28(12-30)21-17(3-5-27(28,37)9-15)29(38)6-4-16(14-7-20(33)39-11-14)26(29,2)10-18(21)31;;;;;;;;/h7,13,15-19,21-25,30-32,34-38H,3-6,8-12H2,1-2H3;8*1H2/t13?,15-,16+,17?,18+,19+,21+,22?,23?,24?,25?,26?,27?,28?,29?;;;;;;;;/m0......../s1

InChI key

TYBARJRCFHUHSN-HMNHGHQSSA-N

General description

Inhibits Na+ and K+-dependent ATPases. Has cardiotonic properties.
Inhibits Na+,K+-ATPase. Exhibits cardiotonic properties. Preferentially enhances radiotoxicity in tumor cells and induces apoptosis by prolonging the irradiation-induced G2 delay.

Biochem/physiol Actions

Cell permeable: no
Primary Target
Na+,K+-ATPase
Product does not compete with ATP.
Reversible: no

Warning

Toxicity: Toxic (F)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C) for long-term storage or refrigerate (4°C) for short-term storage. Stock solutions are stable for up to 2 weeks at 4°C or for up to 2 months at -20°C.

Other Notes

Due to the nature of the Hazardous Materials in this shipment, additional shipping charges may be applied to your order. Certain sizes may be exempt from the additional hazardous materials shipping charges. Please contact your local sales office for more information regarding these charges.
Verheye-Dua, F.A., and Bohm, L. 2000. Strahlenther Onkol. 176, 186.
Hasenauer, J., et al. 1993. J. Biol. Chem.268, 3289.
Rakowski, F.F. 1993. J. Gen. Physiol.101, 117.
Mahaney, J.E., and Grisham, C.M. 1992. Biochemistry31, 2025.
Xu, Z.J., et al. 1992. J. Physiol.456, 405.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Skull and crossbonesHealth hazard
GHS06,GHS08

signalword

Danger

Hazard Classifications

Acute Tox. 1 Oral - Acute Tox. 3 Inhalation - STOT RE 2

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 3

Certificates of Analysis (COA)

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Yao Yuan et al.
Neural regeneration research, 20(1), 265-276 (2024-05-20)
JOURNAL/nrgr/04.03/01300535-202501000-00034/figure1/v/2024-05-14T021156Z/r/image-tiff Certain amino acids changes in the human Na+/K+-ATPase pump, ATPase Na+/K+ transporting subunit alpha 1 (ATP1A1), cause Charcot-Marie-Tooth disease type 2 (CMT2) disease and refractory seizures. To develop in vivo models to study the role of Na+/K+-ATPase in these
Peter C Raffalt et al.
Computers in biology and medicine, 122, 103786-103786 (2020-06-02)
The calculation of the largest Lyapunov exponent (LyE) requires the reconstruction of the time series in an N-dimensional state space. For this, the time delay (Tau) and embedding dimension (EmD) are estimated using the Average Mutual Information and False Nearest

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