Dimethyl 2,2,2-trichloro-1-hydroxyethylphosphonate [tichlorfon or DEP]

CAS 52-68-6 C₄H₈Cl₃O₄P MW 257.4400 Danger
Skull and Crossbones Skull and Crossbones
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Health Hazard Health Hazard
Environment Environment
Emergency: 911 | Poison Control: 1-800-222-1222

Hazard Statements

CodeStatementHazard Class
H302 Harmful if swallowed Acute toxicity, oral
H317 May cause an allergic skin reaction Sensitization, Skin
H319 Causes serious eye irritation Serious eye damage/eye irritation
H331 Toxic if inhaled Acute toxicity, inhalation
H340 May cause genetic defects Germ cell mutagenicity
H360 May damage fertility or the unborn child Reproductive toxicity
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

CodeStatement
P203 Obtain, read and follow all safety instructions before use.
P260 Do not breathe dust/fume/gas/mist/vapors/spray.
P261 Avoid breathing 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.
P271 Use only outdoors or in a well-ventilated area.
P272 Contaminated work clothing should not be allowed out of the workplace.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P301+P317 IF SWALLOWED: Get medical help.
P302+P352 IF ON SKIN: wash with plenty of water/...
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
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.
P316 Get emergency medical help immediately.
P318 if exposed or concerned, get medical advice.
P319 Get medical help if you feel unwell.
P321 Specific treatment (see information on this label and safety datasheet)).
P330 Rinse mouth.
P333+P317 If skin irritation or rash occurs: Get medical help.
P337+P317 If eye irritation persists: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P391 Collect spillage.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P501 Dispose of contents/container to ...

Physical Properties

White crystalline solid.

Boiling Point212°F at 0.1 mmHg
Vapor Pressure7.8x10-6
Specific Gravity1.73

Synonyms

(2,2,2-trichloro-1-hydroxyethyl) dimethylphosphonate; (2,2,2-trichloro-1-hydroxyethyl) phosphonic acid dimethyl ester

Data Sources

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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