Substance profile
Demeton-S
Demeton-S is a colorless oil with a technical grade demeton has a pronounced mercaptan-like odor.
01 · Identification
What Demeton-S is
Demeton-S is a colorless oil with a technical grade demeton has a pronounced mercaptan-like odor. Its molecular formula is C8H19O3PS2 and its molecular weight is 258.3 g/mol. It is soluble in water.
Under the GHS it carries the signal word Danger.
Other names for Demeton-S
- demeton-S (ISO)
- diethyl-S-2-ethylthioethyl 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 |
|---|---|
| H310 | Fatal in contact with skin. |
| H300 | Fatal if swallowed. |
Precautionary statements: P270, P280, P301, P302, P310, P330, P352
03 · Physical and chemical properties
Demeton-S 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 |
|---|---|---|---|
| Boiling point | 128 °C (262.4 °F) | at 1 mmHg (reduced pressure) | HSDB |
| 128 °C (262.4 °F) | at 0.750062 mmHg (reduced pressure) | ICSC | |
| Density | 1.13 g/cm³ | ICSC | |
| 1.132 g/cm³ | at 21 °C | HSDB | |
| Solubility | Soluble in most organic solvents. | HSDB | |
| In water, 2,000 mg/L at 20 °C | at 20 °C | HSDB | |
| Solubility in water, g/100ml at 20 °C: 0.2 | at 20 °C | ICSC | |
| Vapor pressure | 0.00026 mmHg | at 20 °C | HSDB |
| 0.0002625 mmHg | at 20 °C | ICSC | |
| 0.000262 mmHg | Haz-Map | ||
| Vapor density | 8.92 (air = 1) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.