Substance profile
Ouabain
Ouabain is crystals from water.
01 · Identification
What Ouabain is
Ouabain is crystals from water. Its molecular formula is C29H44O12 and its molecular weight is 584.7 g/mol. It melts at 200 °C, is slightly soluble in water.
Under the GHS it carries the signal word Danger.
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H331 | Toxic if inhaled. |
| H301 | Toxic if swallowed. |
| H373 | May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
Precautionary statements: P260, P270, P271, P301, P304, P310, P314, P330
03 · Physical and chemical properties
Ouabain properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 200 °C (392 °F) | HSDB | |
| 190 °C (374 °F) | DOE PAC | ||
| Solubility | Slightly soluble in water | HSDB | |
| Very soluble in alcohol | HSDB | ||
| 4.61e+00 g/L | HMDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Ouabain
Reactivity
When heated to decomposition, OUABAIN emits acrid smoke and fumes. Hydrolysis yields one mole ouabagenin and one mole rhamnose. Stable in air, but affected by light (ouabain octahydrate) [EPA, 1998].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Ouabain in the storage compatibility matrix →