Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

Build a label

Substance profile

Dichlorophen

Dichlorophen is colorless crystals and is odorless.

CAS 97-23-4 C13H10Cl2O2 269.12 g/mol Warning

01 · Identification

What Dichlorophen is

Dichlorophen is colorless crystals and is odorless. Its molecular formula is C13H10Cl2O2 and its molecular weight is 269.12 g/mol. It melts at 178 °C.

Under the GHS it carries the signal word Warning.

CAS number97-23-4
EC number202-567-1
Index number604-019-00-0
Molecular formulaC13H10Cl2O2
Molecular weight269.12 g/mol

Other names for Dichlorophen

  • dichlorophen (ISO)

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.

Signal wordWarning
Hazard statements assigned to Dichlorophen
CodeHazard statement
H302 Harmful if swallowed.
H319 Causes serious eye irritation.
H400 Very toxic to aquatic life.
H410 Very toxic to aquatic life with long lasting effects.

Precautionary statements: P264, P270, P273, P280, P301, P305, P312, P313, P330, P337, P338, P391, P501

03 · Physical and chemical properties

Dichlorophen 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 178 °C (352.4 °F) DOE PAC
177.5 °C (351.5 °F) range, midpoint shown HSDB
Solubility less than 1 mg/mL at 72 °F (NTP, 1992) at 22.22 °C CAMEO
In water, 30 mg/L at 25 °C at 25 °C HSDB
Vapor pressure 9.75e-11 mmHg at 25 °C HSDB
1e-10 mmHg at 25 °C CAMEO

Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.

04 · Source notes

Further notes on Dichlorophen

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

Sparingly sol in toluene; 1 g sol in 1 g of 95% ethanol, in less than 1 g of ether; sol in methanol, isopropyl ether, petroleum ether; sol (with decomp) in alkaline aq solutions

Source: HSDB

05 · Handling and storage

Storing and handling Dichlorophen

Storage conditions

Safe Storage of Pesticides. Always store pesticides in their original containers, complete with labels that list ingredients, directions for use, and first aid steps in case of accidental poisoning. Never store pesticides in cabinets with or near food, animal feed, or medical supplies. Do not store pesticides in places where flooding is possible or in places where they might spill or leak into wells, drains, ground water, or surface water.

Source: Hazardous Substances Data Bank (HSDB)

Reactivity

DICHLOROPHENE is incompatible with strong oxidizing agents and strong bases (NTP, 1992). Weakly acidic.

Source: CAMEO Chemicals

Planning storage for a mix of chemicals? Check Dichlorophen in the storage compatibility matrix →

Get the free GHS / CLP / OSHA deadline calendar

Verified 2026–2029 compliance dates in one PDF — plus alerts when the rules change.