Substance profile
Dicrotophos
Dicrotophos is a yellowish liquid with a mild, ester odor.
01 · Identification
What Dicrotophos is
Dicrotophos is a yellowish liquid with a mild, ester odor. Its molecular formula is C8H16NO5P and its molecular weight is 237.19 g/mol. It boils at 400 °C, is miscible with water.
Under the GHS it carries the signal word Danger.
Other names for Dicrotophos
- dicrotophos (ISO)
- (Z)-2-dimethylcarbamoyl-1-methylvinyl dimethyl phosphate
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 |
|---|---|
| H300 | Fatal if swallowed. |
| H311 | Toxic in contact with skin. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P270, P273, P280, P301, P302, P310, P330, P352, P391, P501
03 · Physical and chemical properties
Dicrotophos 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 | 400 °C (752 °F) | at 760 mmHg | HSDB |
| 400 °C (752 °F) | NIOSH | ||
| Density | 1.216 g/cm³ | at 15 °C | HSDB |
| Solubility | Totally miscible with acetone, alcohols, acetonitrile, chloroform, dichlorormethane, xylene; very slightly soluble (<10 g/kg) in diesel oil, kerosene | HSDB | |
| Miscible with carbon tetracloride | HSDB | ||
| MISCIBLE WITH HEXYLENE GLYCOL | HSDB | ||
| Vapor pressure | 0.0001 mmHg | NIOSH | |
| 0.00001 mmHg | at 20 °C | CAMEO | |
| 159800 mmHg | at 25 °C | HSDB | |
| Flash point | 93.33 °C (200 °F) | above this value | HSDB |
| 93 °C (199.4 °F) | above this value | ICSC | |
| Lower explosive limit (LEL) | Class IIIB Combustible Liquid: Fl.P. at or above 200 °F. | NIOSH | |
| Corrosivity | Corrosive to cast iron, mild steel, brass, and stainless steel. | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Dicrotophos
Storage conditions
Do not ... store in or around home. Avoid food, feed products. Keep away from heat and open flame.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Attacks some metals.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
Organophosphates, such as DICROTOPHOS, 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. This compound is incompatible with the following: Metals [Note: Corrosive to cast iron, mild steel, brass & stainless steel.] (NIOSH, 2024).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Dicrotophos in the storage compatibility matrix →