Substance profile
Tribenuron-methyl
Tribenuron-methyl is an off-white powder with a slightly pungent odor.
01 · Identification
What Tribenuron-methyl is
Tribenuron-methyl is an off-white powder with a slightly pungent odor. Its molecular formula is C15H17N5O6S and its molecular weight is 395.4 g/mol. It melts at 141 °C.
Under the GHS it carries the signal word Warning.
Other names for Tribenuron-methyl
- tribenuron-methyl (ISO)
- methyl 2-[N-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-N-methylcarbamoylsulfamoyl]benzoate
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 |
|---|---|
| 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>. |
| H317 | May cause an allergic skin reaction. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P261, P270, P272, P273, P280, P313, P314, P333, P391, P501
03 · Physical and chemical properties
Tribenuron-methyl 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 | 141 °C (285.8 °F) | ICSC | |
| Density | 1.5 g/cm³ | ICSC | |
| 1.46 g/cm³ | at 20 °C | HSDB | |
| Solubility | Low solubility in organic solvents | HSDB | |
| In water, 50 mg/L at pH 5; 2,040 mg/L at pH 7 and 18,300 mg/L at pH 9, all at 20 °C | at 20 °C | HSDB | |
| Vapor pressure | 3.9e-10 mmHg | at 25 °C | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Source notes
Further notes on Tribenuron-methyl
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
Solubility in acetone, 3.91X107 mg/L; acetonitrile, 4.64X10+7 mg/L; ethylhexane, 1.63X10+7 mg/L; ethyl acetate, 1.63X10+7 mg/L; n-heptane, 20800 mg/L; methanol, 2.59X10+6 mg/L, all at 20 °C
Source: HSDB
05 · Handling and storage
Storing and handling Tribenuron-methyl
Storage conditions
Store in original container. Do not contaminate pesticides, fertilizers, food, or feed by storage or disposal.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
A sulfonylurea derivative.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Tribenuron-methyl in the storage compatibility matrix →