Substance profile
Thiabendazole
Thiabendazole is colorless crystals and is odorless.
01 · Identification
What Thiabendazole is
Thiabendazole is colorless crystals and is odorless. Its molecular formula is C10H7N3S and its molecular weight is 201.25 g/mol. It melts at 305 °C, is slightly soluble in water.
Under the GHS it carries the signal word Warning.
Other names for Thiabendazole
- thiabendazole (ISO)
- 2-(thiazol-4-yl)benzimidazole
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
Thiabendazole 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 | 304.5 °C (580.1 °F) | range, midpoint shown | HSDB |
| 304.44 °C (580 °F) | range, midpoint shown | CAMEO | |
| 300 °C (572 °F) | HMDB | ||
| Density | 1.103 g/cm³ | at 25 °C, Thiabendazole hypophosphite | HSDB |
| Solubility | Max solubility in water at pH 2.2: 3.84%; slightly sol in alcohols, esters, chlorinated hydrocarbons | HSDB | |
| Slightly soluble in ethanol | HSDB | ||
| In n-heptane <0.1, xylene 0.13, methanol 8.28, 1,2-dichloroethane 0.81, acetone 2.43, ethyl acetate 1.49, n-octanol 3.91, all in g/L at 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 4e-9 mmHg | at 25 °C | HSDB |
| Negligible (NTP, 1992) | CAMEO |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Thiabendazole
Storage conditions
Thiabendazole tablets and oral suspension should be stored in tight containers at 15 - 30 °C. The oral suspension should be protected from freezing.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Incompatible with a number of pesticides including copper-containing fungicides, & highly alkaline materials.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
THIABENDAZOLE is incompatible with a number of pesticides, including copper-containing fungicides, and with highly alkaline materials. It is a chelating agent, binding many metals including iron, but not calcium (NTP, 1992)
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Thiabendazole in the storage compatibility matrix →