Substance profile
Flazasulfuron
Flazasulfuron is a white, crystalline solid and is odorless.
01 · Identification
What Flazasulfuron is
Flazasulfuron is a white, crystalline solid and is odorless. Its molecular formula is C13H12F3N5O5S and its molecular weight is 407.33 g/mol. It melts at 180 °C.
Under the GHS it carries the signal word Warning.
Other names for Flazasulfuron
- flazasulfuron (ISO)
- 1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-trifluoromethyl-2-pyridylsulfonyl)urea
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.
03 · Physical and chemical properties
Flazasulfuron 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 | 180 °C (356 °F) | HSDB | |
| 165 °C (329 °F) | range, midpoint shown | HSDB | |
| Density | 1.606 g/cm³ | at 20 °C | HSDB |
| Solubility | In water, 4.1 ppm (pH 1) | HSDB | |
| Solubility at 20 °C (w/w%): Acetone 1.2%; toluene 0.06%; at 25 °C (w/v%): acetic acid 0.67% | at 20 °C | HSDB | |
| Vapor pressure | 3.1e-8 mmHg | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Source notes
Further notes on Flazasulfuron
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 octanol 0.2, methanol 4.2, acetone 22.7, dichloromethane 22.1, ethyl acetate 6.9, toluene 0.56, acetonitrile 8.7 (all in g/L, 25 °C); in hexane 0.5 mg/L at 25 °C
Source: HSDB
05 · Handling and storage
Storing and handling Flazasulfuron
Storage conditions
Keep out of reach of children and animals. Store in original containers only. Store in a cool, dry place and avoid excess heat. Carefully open containers. After partial use, fold and roll back bags, clamp and close tightly. Do not put concentrate or dilute material into food or drink containers. Do not contaminate other pesticides, fertilizers, water, food or feed by storage or disposal. /Katana Turf Herbicide/
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check Flazasulfuron in the storage compatibility matrix →