Substance profile
Diphacinone
Diphacinone is yellow crystals and is odorless.
01 · Identification
What Diphacinone is
Diphacinone is yellow crystals and is odorless. Its molecular formula is C23H16O3 and its molecular weight is 340.4 g/mol. It melts at 147 °C.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Diphacinone identifiers and molecular data
Diphacinone CAS number and EC number
Diphacinone molecular formula and molecular weight
Other names for Diphacinone
- diphacinone (ISO)
- 2-diphenylacetylindan-1,3-dione
03 · GHS classification
Diphacinone hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Diphacinone pictograms and signal word
Diphacinone hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 1 or 2 | H300 | GHS06 |
| Specific target organ toxicity - repeated exposure GHS chapter 3.9 | Category 1 | H372 | GHS08 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Diphacinone hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H300 | Fatal if swallowed. |
| H372 | Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
This page lists only the codes assigned to Diphacinone. 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 Diphacinone
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 Diphacinone 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
Diphacinone precautionary statements
CLP Annex VI assigns 6 precautionary statements to Diphacinone. 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.
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
Diphacinone 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 | дифацинон (ISO) 2-дифенилацетилиндан-1,3-дион |
| Spanish español | Difacinona (ISO) 2-difenilacetilindan-1,3-diona |
| Czech čeština | difacinon (ISO) 2-(difenylacetyl)indan-1,3-dion |
| Danish dansk | diphacinon (ISO) 2-diphenylacetylindan-1,3-dion |
| German Deutsch | Diphacinon (ISO) 2-Diphenylacetylindan-1,3-dion |
| Estonian eesti | difatsinoon (ISO) 2-difenüülatsetüülindaan-1,3-dioon |
| Greek ελληνικά | diphacinone (διφακινόνη) (ISO) 2-διφαινυλακετυλινδανο-1,3-διόνη |
| English English | diphacinone (ISO) 2-diphenylacetylindan-1,3-dione |
| French français | diphacinone (ISO) 2-diphénylacétylindan-1,3-dione |
| Croatian hrvatski | difacinon (ISO) 2-difenilacetilindan-1,3-dion |
| Italian italiano | difacinone (ISO) 2-difenilacetilindan-1,3-dione |
| Latvian latviešu | difacinons (ISO) 2-difenilacetilindān-1,3-dions |
| Lithuanian lietuvių | difacinonas (ISO) 2-difenilacetilindan-1,3-dionas |
| Hungarian magyar | difacinon (ISO) 2-difenilacetilindán-1,3-dion |
| Maltese Malti | difaċinon (ISO) 2-difenilaċetilindan-1,3-dion |
| Dutch Nederlands | difacinon (ISO) 2-difenylacetylindaan-1,3-dion |
| Polish polski | difacynon (ISO) 2-(difenyloacetylo)indano-1,3-dion |
| Portuguese português | difacinona (ISO) 2-difenilacetilindano-1,3-diona |
| Romanian română | difacinon (ISO) 2-difenilacetilindan-1,3-dionă |
| Slovak slovenčina | difacinón (ISO) 2-(difenylacetyl)indán-1,3-dión |
| Slovenian slovenščina | difacinon (ISO) 2-difenilacetilindan-1,3-dion |
| Finnish suomi | difasinoni (ISO) 2-difenyyliasetyyli-indaani-1,3-dioni |
| Swedish svenska | difacinon (ISO) 2-difenylacetylindan-1,3-dion |
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
Diphacinone GHS label elements
Everything CLP Annex VI fixes for Diphacinone, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Diphacinone
- Fatal if swallowed.
- Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Do not eat, drink or smoke when using this product.
- IF SWALLOWED:
- Immediately call a POISON CENTER/doctor/…
- Get medical advice/attention if you feel unwell.
- Rinse mouth.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Diphacinone in the GHS label constructor →
07 · Physical and chemical properties
Diphacinone 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.
Diphacinone melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 147 °C (296.6 °F) | ICSC | |
| 143 °C (289.4 °F) | range, midpoint shown | HSDB |
Diphacinone density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.87 g/cm³ | HSDB | |
| 1.3 g/cm³ | ICSC | ||
| 1.281 g/cm³ | at 25 °C | DOE PAC |
Diphacinone solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | In water, 0.3 mg/L, temp not specified | HSDB | |
| Soluble in methyl cyanide, cyclohexane | HSDB | ||
| SOL IN ETHER, GLACIAL ACETIC ACID | HSDB |
Diphacinone vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 1.2e-8 mmHg | HSDB | |
| 1.03e-10 mmHg | at 25 °C | HSDB | |
| Vapor pressure, Pa at 25 °C: (negligible) | at 25 °C | ICSC |
Diphacinone corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | NON-CORROSIVE | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
08 · Fire and explosion
Diphacinone fire and explosion behaviour
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.
Diphacinone fire potential
Not flammable or combustible.
Source: Hazardous Substances Data Bank (HSDB)
09 · Handling and storage
Diphacinone storage and handling
Diphacinone safe storage
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Well closed. Store in an area without drain or sewer access.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Diphacinone reactivity
DIPHACINONE is a ketone, and behaves as a weak acid. Forms water soluble alkali metal salts. Ketones are reactive with many acids and bases liberating heat and flammable gases (e.g., H2). The amount of heat may be sufficient to start a fire in the unreacted portion of the ketone. Ketones react with reducing agents such as hydrides, alkali metals, and nitrides to produce flammable gas (H2) and heat. Ketones are incompatible with isocyanates, aldehydes, cyanides, peroxides, and anhydrides. They react violently with aldehydes, HNO3, HNO3 + H2O2, and HClO4.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Diphacinone in the storage compatibility matrix →
10 · Questions
Diphacinone — frequently asked questions
What is the CAS number of Diphacinone?
The CAS number of Diphacinone is 82-66-6. Its EC number is 201-434-5.
What is the chemical formula of Diphacinone?
The molecular formula of Diphacinone is C23H16O3 and its molecular weight is 340.4 g/mol.
What does a Diphacinone label have to show?
Under CLP Annex VI the label for Diphacinone carries the pictograms Skull and crossbones and Health hazard and the signal word is Danger.
Is Diphacinone flammable?
CLP Annex VI assigns Diphacinone 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 Diphacinone a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Diphacinone. 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 Diphacinone?
The melting point reported for Diphacinone is 147 °C (296.6 °F) (ICSC).
Nearby
Substances next to Diphacinone
Keep going: substances starting with D, or search the whole database by name, CAS number, pictogram or signal word.