O,O-diethyl O-(3,5,6-trichloro-2-pyridyl) thiophosphate [Chlorpyrifos]
Skull and Crossbones
Health Hazard
Environment
Hazard Statements
| Code | Statement | Hazard Class |
|---|---|---|
H301 |
Toxic if swallowed | Acute toxicity, oral |
H320 |
Causes eye irritation | Serious eye damage/eye irritation |
H370 |
Causes damage to organs | Specific target organ toxicity, single exposure |
H372 |
Causes damage to organs through prolonged or repeated exposure | Specific target organ toxicity, repeated exposure |
H373 |
May causes damage to organs through prolonged or repeated exposure | Specific target organ toxicity, repeated exposure |
H400 |
Very toxic to aquatic life | Hazardous to the aquatic environment, acute hazard |
H410 |
Very toxic to aquatic life with long lasting effects | Hazardous to the aquatic environment, long-term hazard |
Precautionary Statements
| Code | Statement |
|---|---|
P260 |
Do not breathe dust/fume/gas/mist/vapors/spray. |
P264 |
Wash hands [and ...] thoroughly after handling. |
P264+P265 |
Wash hands [and ...] thoroughly after handling. Do not touch eyes. |
P270 |
Do not eat, drink or smoke when using this product. |
P273 |
Avoid release to the environment. |
P301+P316 |
IF SWALLOWED: Get emergency medical help immediately. |
P305+P351+P338 |
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do - continue rinsing. |
P308+P316 |
IF exposed or concerned: Get emergency medical help immediately. |
P319 |
Get medical help if you feel unwell. |
P321 |
Specific treatment (see information on this label and safety datasheet)). |
P330 |
Rinse mouth. |
P337+P317 |
If eye irritation persists: Get medical help. |
P391 |
Collect spillage. |
P405 |
Store locked up. |
P501 |
Dispose of contents/container to ... |
Exposure Limits
| NIOSH REL | 0.2 mg-m3 |
| NIOSH STEL | 0.6 mg-m3 |
| Skin Notation | Yes — can be absorbed through skin |
Physical Properties
Colorless to white, crystalline solid with a mild, mercaptan-like odor.
| Boiling Point | 320°F (decomposes) |
| Vapor Pressure | 0.00002 mmHg |
| Specific Gravity | 1.40 (liquid at 110°F) |
Target Organs
depression of plasma cholinesterase
Synonyms
chlorpyrifos-ethyl; O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate; Dursban; phosphorothioate; phosphorothioic acid
Data Sources
- GHS Classification: PubChem CID 2730
- NIOSH REL/IDLH: NIOSH Pocket Guide
Disclaimer: This information is compiled from public regulatory databases for reference only. It does not replace the manufacturer's Safety Data Sheet (SDS). Always consult the official SDS for your specific product before handling chemicals.
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