Substance profile
Dichlorophen
Dichlorophen is colorless crystals and is odorless.
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.
02 · Identifiers
Dichlorophen identifiers and molecular data
Dichlorophen CAS number and EC number
Dichlorophen molecular formula and molecular weight
Other names for Dichlorophen
- dichlorophen (ISO)
03 · GHS classification
Dichlorophen hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Dichlorophen pictograms and signal word
Dichlorophen hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Serious eye damage/eye irritation GHS chapter 3.3 | Category 2A | H319 | GHS07 |
| Hazardous to the aquatic environment - acute GHS chapter 4.1 | Category 1 | H400 | GHS09 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 1 | H410 | GHS09 |
Dichlorophen hazard statements (H-codes)
| Code | Hazard 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. |
This page lists only the codes assigned to Dichlorophen. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for Dichlorophen
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of Dichlorophen issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
Dichlorophen precautionary statements
CLP Annex VI assigns 13 precautionary statements to Dichlorophen. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Response
What to do once exposure, spillage or fire has already happened.
Disposal
What has to happen to the contents and the empty container.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
Dichlorophen name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | дихлорофен (ISO) |
| Spanish español | Diclorofeno (ISO) |
| Czech čeština | dichlorofen (ISO) |
| Danish dansk | dichlorophen (ISO) |
| German Deutsch | Dichlorophen (ISO) 2,2'-Methylenbis(4-chlorphenol) |
| Estonian eesti | diklorofeen (ISO) |
| Greek ελληνικά | dichlorophen (διχλωροφαίνιο) (ISO) |
| English English | dichlorophen (ISO) |
| French français | dichlorophène (ISO) |
| Croatian hrvatski | diklorofen (ISO) |
| Italian italiano | diclorofene (ISO) |
| Latvian latviešu | dihlorofēns (ISO) |
| Lithuanian lietuvių | dichlorfenas (ISO) |
| Hungarian magyar | diklórfen (ISO) |
| Maltese Malti | diklorofen (ISO) |
| Dutch Nederlands | dichlorofeen (ISO) |
| Polish polski | dichlorofen (ISO) 4,4'-dichloro-2,2'-metylenodifenol2,2'-metylenobis(4-chlorofenol) |
| Portuguese português | diclorfena (ISO) |
| Romanian română | diclorofen (ISO) |
| Slovak slovenčina | dichlorofén (ISO) |
| Slovenian slovenščina | diklorofen (ISO) |
| Finnish suomi | diklorofeeni (ISO) |
| Swedish svenska | diklorofen (ISO) |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
Dichlorophen GHS label elements
Everything CLP Annex VI fixes for Dichlorophen, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Dichlorophen
- Harmful if swallowed.
- Causes serious eye irritation.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Wash … thoroughly after handling.
- Do not eat, drink or smoke when using this product.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF IN EYES:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Get medical advice/attention.
- Rinse mouth.
- If eye irritation persists:
- Remove contact lenses, if present and easy to do. Continue rinsing.
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Dichlorophen in the GHS label constructor →
07 · Health hazards
Dichlorophen health hazards and exposure limits
Dichlorophen hazard summary
One of the common contact allergens in antiseptics; [HSDB] One of the skin allergen of photographers and photo-lab workers; [Kanerva, p. 1637]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · 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.
Dichlorophen melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 178 °C (352.4 °F) | DOE PAC | |
| 177.5 °C (351.5 °F) | range, midpoint shown | HSDB |
Dichlorophen solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| 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 |
Dichlorophen vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| 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.
09 · 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
10 · Handling and storage
Dichlorophen storage 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)
Dichlorophen 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 →
11 · Questions
Dichlorophen — frequently asked questions
What is the CAS number of Dichlorophen?
The CAS number of Dichlorophen is 97-23-4. Its EC number is 202-567-1.
What is the chemical formula of Dichlorophen?
The molecular formula of Dichlorophen is C13H10Cl2O2 and its molecular weight is 269.12 g/mol.
What does a Dichlorophen label have to show?
Under CLP Annex VI the label for Dichlorophen carries the pictograms Exclamation mark and Environment and the signal word is Warning.
Is Dichlorophen flammable?
CLP Annex VI assigns Dichlorophen no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it.
Is Dichlorophen a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Dichlorophen. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.
What is the melting point of Dichlorophen?
The melting point reported for Dichlorophen is 178 °C (352.4 °F) (DOE PAC).
How should Dichlorophen be stored?
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. (Hazardous Substances Data Bank (HSDB))
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