Substance profile
Linuron
Linuron is a white crystalline solid and is odorless.
01 · Identification
What Linuron is
Linuron is a white crystalline solid and is odorless. Its molecular formula is C9H10Cl2N2O2 and its molecular weight is 249.09 g/mol. It melts at 93.5 °C.
Under the GHS it carries the signal word Danger. It is classed as carcinogens.
Other names for Linuron
- linuron (ISO)
- 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea
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 |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H360Df | May damage the unborn child. Suspected of damaging fertility. |
| H302 | Harmful 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>. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P201, P260, P270, P273, P280, P301, P308, P312, P313, P314, P330, P391, P501
03 · Physical and chemical properties
Linuron 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 | 93.5 °C (200.3 °F) | range, midpoint shown | HSDB |
| Density | 1.49 g/cm³ | at 20 °C | HSDB |
| Solubility | PARTIALLY SOL IN TOLUENE | HSDB | |
| SPARINGLY SOL IN ALIPHATIC HYDROCARBONS | HSDB | ||
| Vapor pressure | 0.000015 mmHg | at 24 °C | ICSC |
| 0.00000143 mmHg | at 25 °C | HSDB | |
| 0.00000143 mmHg | Haz-Map | ||
| Corrosivity | Non-corrosive | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Source notes
Further notes on Linuron
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Solubility
In acetone 500, benzene 150, ethanol 150, xylene 130, n-heptane 15 (all in g/kg at 25 °C). Readily soluble in dimethylformamide, chloroform, and diethyl ether. Moderately soluble in aromatic hydrocarbons. Sparingly soluble in aliphatic hydrocarbons.
Source: HSDB
05 · Handling and storage
Storing and handling Linuron
Storage conditions
Store in cool, dry place ... .
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
A urea derivative.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Linuron in the storage compatibility matrix →