Substance profile
Endothion
Endothion is crystals.
01 · Identification
What Endothion is
Endothion is crystals. It melts at 96 °C.
Under the GHS it carries the signal word Danger.
Other names for Endothion
- endothion (ISO)
- S-5-methoxy-4-oxopyran-2-ylmethyl dimethyl phosphorothioate
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 |
|---|---|
| H311 | Toxic in contact with skin. |
| H301 | Toxic if swallowed. |
Precautionary statements: P270, P280, P301, P302, P310, P330, P352
03 · Physical and chemical properties
Endothion 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 | 96 °C (204.8 °F) | DOE PAC | |
| 90.5 °C (194.9 °F) | range, midpoint shown | HSDB | |
| 93.06 °C (199.5 °F) | range, midpoint shown | CAMEO | |
| Solubility | In water, 1.5X10+6 mg/L | HSDB | |
| Soluble in olive oil; insoluble in light petroleum and cyclohexane | HSDB | ||
| Soluble in acetone, benzene; insoluble in ether or carbon tetrachloride | HSDB | ||
| Vapor pressure | 0.00000569 mmHg | Haz-Map |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Endothion
Storage conditions
... Must be stored in its sealed original containers, in well-aired, fresh and dry storehouses or in shaded and possibly well-aired places. It is recommended that the product's temp ... not exceed 25-30 °C, and keep ... away from sources of heat, free flames or spark-generating equipment. Containers must be stacked in such a way as to permit free circulation of air ... at bottom & inside of piles. Storage areas must be located at suitable distance from inhabited buildings, animal shelters, & food stores; moreover, they must be inaccessible to unauthorized persons, children, & domestic animals.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
Organothiophosphates, such as ENDOTHION, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Endothion in the storage compatibility matrix →