EPA Extremely Hazardous Substances List. Reported in EPA TSCA Inventory.

The Ouabain, with the CAS registry number 630-60-4, is also known as G-Strophanthin. It belongs to the product categories of Biochemistry; Glycosides; Rhamnose; Steroidglycosides; Steroids; Sugars. Its EINECS number is 211-139-3. This chemical's molecular formula is C₂₉H₄₄O₁₂ and molecular weight is 584.65. What's more, its systematic name is (1β,3β,5β,11α)-3-[(6-Deoxy-α-L-mannopyranosyl)oxy]-1,5,11,14,19-pentahydroxycard-20(22)-enolide. Its classification codes are: (1)Cardiotonic agents; (2)Cardiovascular Agents; (3)Drug / Therapeutic Agent; (4)Enzyme inhibitors; (5)Mutation data; (6)Natural Product; (7)Protective Agents. This chemical is used to produce rapid digitalization in acute congestive heart failure, and it is also recommended in treatment of atrial or nodal paroxysmal tachycardia and atrial flutter. It is a cardioactive glycoside consisting of rhamnose and ouabagenin, obtained from the seeds of Strophanthus gratus and other plants of the Apocynaceae. It should be sealed and stored in a cool and dry place. Moreover, it should be protected from oxides. 

Physical properties of Ouabain are: (1)ACD/LogP: -2.205; (2)# of Rule of 5 Violations: 3; (3)ACD/LogD (pH 5.5): -2.21; (4)ACD/LogD (pH 7.4): -2.21; (5)ACD/BCF (pH 5.5): 1.00; (6)ACD/BCF (pH 7.4): 1.00; (7)ACD/KOC (pH 5.5): 1.51; (8)ACD/KOC (pH 7.4): 1.51; (9)#H bond acceptors: 12; (10)#H bond donors: 8; (11)#Freely Rotating Bonds: 12; (12)Polar Surface Area: 206.6 Å²; (13)Index of Refraction: 1.655; (14)Molar Refractivity: 141.172 cm³; (15)Molar Volume: 384.679 cm³; (16)Polarizability: 55.965×10^-24cm³; (17)Surface Tension: 83.78 dyne/cm; (18)Density: 1.52 g/cm³; (19)Flash Point: 272.893 °C; (20)Enthalpy of Vaporization: 138.556 kJ/mol; (21)Boiling Point: 838.219 °C at 760 mmHg; (22)Vapour Pressure: 0 mmHg at 25°C.

Uses of Ouabain: it can be used to produce 1b,3',19-tri-[(tert-butyldimethylsilyl)oxy]-3b-[(a-L-rhamnopyranosyl)oxy]-5,11a,14-trihydroxycard-20(22)-enolide. It will need reagent imidazole and solvent dimethylformamide with the reaction time of 2 hours. The yield is about 72%.

When you are using this chemical, please be cautious about it as the following:
This chemical is toxic by inhalation and if swallowed. In case of accident or if you feel unwell, you should seek medical advice immediately (show the label where possible).

You can still convert the following datas into molecular structure:
(1)SMILES: O=C\1OC/C(=C/1)[C@H]2CC[C@@]6(O)[C@]2(C)C[C@@H](O)[C@H]4[C@H]6CC[C@]5(O)C[C@@H](O[C@@H]3O[C@H]([C@H](O)[C@@H](O)[C@H]3O)C)C[C@@H](O)[C@]45CO
(2)Std. InChI: InChI=1S/C29H44O12/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/t13-,15-,16+,17+,18+,19+,21+,22-,23+,24+,25-,26+,27-,28+,29-/m0/s1
(3)Std. InChIKey: LPMXVESGRSUGHW-HBYQJFLCSA-N

The toxicity data is as follows: