Substance profile
Dibenzo[def,p]chrysene
Dibenzo[def,p]chrysene is yellow plates from benzene/ethanol and is odorless.
01 · Identification
What Dibenzo[def,p]chrysene is
Dibenzo[def,p]chrysene is yellow plates from benzene/ethanol and is odorless. Its molecular formula is C24H14 and its molecular weight is 302.4 g/mol. It boils at 631 °C, melts at 165 °C.
Under the GHS it carries the signal word Danger. It is classed as carcinogens.
02 · Identifiers
Dibenzo[def,p]chrysene identifiers and molecular data
Dibenzo[def,p]chrysene CAS number and EC number
Dibenzo[def,p]chrysene molecular formula and molecular weight
Other names for Dibenzo[def,p]chrysene
- dibenzo[a,l]pyrene
03 · GHS classification
Dibenzo[def,p]chrysene hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Dibenzo[def,p]chrysene pictograms and signal word
Dibenzo[def,p]chrysene hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Germ cell mutagenicity GHS chapter 3.5 | Category 2 | H341 | GHS08 |
| Carcinogenicity GHS chapter 3.6 | Category 1A or 1B | H350 | 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.
Dibenzo[def,p]chrysene hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H350 | May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H341 | Suspected of causing genetic defects <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 Dibenzo[def,p]chrysene. 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 Dibenzo[def,p]chrysene
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 Dibenzo[def,p]chrysene 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
Dibenzo[def,p]chrysene precautionary statements
CLP Annex VI assigns 4 precautionary statements to Dibenzo[def,p]chrysene. 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
Dibenzo[def,p]chrysene 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 | дибензо[ def , p ]хризен дибензо[ a , l ]пирен |
| Spanish español | Dibenzo[ def , p ]criseno dibenzo[ a , l ]pireno |
| Czech čeština | dibenzo[ def , p ]chrysen dibenzo[ a , l ]pyren |
| Danish dansk | dibenzo[ def , p ]chrysen dibenzo[ a , l ]pyren |
| German Deutsch | Dibenzo[ def , p ]chrysen Dibenzo[ a , l ]pyren |
| Estonian eesti | Dibenso[ def , p ]krüseen dibenso[ a , l ]püreen |
| Greek ελληνικά | διβενζο[ def , p ]χρυσένιο διβενζο[ a , l ]πυρένιο |
| English English | dibenzo[ def , p ]chrysene dibenzo[ a , l ]pyrene |
| French français | dibenzo[ def , p ]chrysène dibenzo[ a , l ]pyrène |
| Croatian hrvatski | dibenzo[ def , p ]krizen dibenzo[ a , l ]piren |
| Italian italiano | dibenzo[ def , p ]crisene dibenzo[ a , l ]pirene |
| Latvian latviešu | dibenz[ def , p ]hrizēns dibenz[ a , l ]pirēns |
| Lithuanian lietuvių | dibenzo[ def , p ]chrizenas dibenzo[ a , l ]pirenas |
| Hungarian magyar | dibenzo[ def , p ]krizén dibenzo[ a , l ]pirén |
| Maltese Malti | dibenżo[ def , p ]krisen dibenżo[ a , l ]piren |
| Dutch Nederlands | dibenzo[ def , p ]chryseen dibenzo[ a , l ]pyreen |
| Polish polski | dibenzo[ def , p ]chryzen dibenzo[ a , l ]piren |
| Portuguese português | dibenzo[ def , p ]criseno dibenzo[ a , l ]pireno |
| Romanian română | dibenzo[ def , p ]crisen dibenzo[ a , l ]piren |
| Slovak slovenčina | dibenzo[ def , p ]chryzén dibenzo[a,l]pyrén |
| Slovenian slovenščina | dibenzo[ def , p ]krizen dibenzo[ a , l ]piren |
| Finnish suomi | dibentso[ def,p ]kryseeni dibentso[ a,l ]pyreeni |
| Swedish svenska | dibenso[ def , p ]krysen dibenso[ a , l ]pyren |
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
Dibenzo[def,p]chrysene GHS label elements
Everything CLP Annex VI fixes for Dibenzo[def,p]chrysene, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Dibenzo[def,p]chrysene
- May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Suspected of causing genetic defects <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Obtain special instructions before use.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF exposed or concerned:
- Get medical advice/attention.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Dibenzo[def,p]chrysene in the GHS label constructor →
07 · Health hazards
Dibenzo[def,p]chrysene health hazards and exposure limits
Dibenzo[def,p]chrysene hazard summary
Emergency treatment: Polynuclear aromatic hydrocarbons; Acute toxicity of PAHs is low; May cause photosensitivity; May cause cancer after chronic exposure; [HSDB] May cause photosensitization; [CHEMINFO] Causes changes in spleen and liver weights and weight loss in ten day intermittent oral studies of mice; [RTECS] See POLYCYCLIC AROMATIC HYDROCARBONS.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Dibenzo[def,p]chrysene carcinogenicity classification
The 15 individual PAHs are reasonably anticipated to be human carcinogens based on sufficient evidence of carcinogenicity from studies in experimental animals. /Dibenzo(a,l)pyrene CAS 191-30-0/
Source: Hazardous Substances Data Bank (HSDB)
There is sufficient evidence in experimental animals for the carcinogenicity of dibenzo[a,l]pyrene. OVERALL EVALUATION: Dibenzo[a,l]pyrene is probably carcinogenic to humans (Group 2A).
Source: Hazardous Substances Data Bank (HSDB)
An IARC group and a CLP classification answer different questions. IARC judges whether the evidence for cancer in humans is strong enough; CLP Annex VI is the legally binding EU classification. A substance can carry one and not the other.
Dibenzo[def,p]chrysene occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| IDLH | NIOSH considers coal tar pitch volatiles to be potential occupational carcinogens. /Coal tar pitch volatiles/ | Hazardous Substances Data Bank (HSDB) |
These are United States values. The European Union sets its own indicative and binding limits, and the figure that applies at a given workplace is the one in the local regulation — not the one shown here.
08 · Physical and chemical properties
Dibenzo[def,p]chrysene 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.
Dibenzo[def,p]chrysene boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 630.6 °C (1167.1 °F) | HSDB |
Dibenzo[def,p]chrysene melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 164.5 °C (328.1 °F) | HSDB | |
| 164.5 °C (328.1 °F) | range, midpoint shown | HSDB |
Dibenzo[def,p]chrysene density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.28 g/cm³ | HSDB |
Dibenzo[def,p]chrysene solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Water insoluble | HSDB | |
| Soluble in concentrated sulfuric acid | HSDB | ||
| Soluble in olive oil | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Dibenzo[def,p]chrysene storage and handling
Dibenzo[def,p]chrysene storage conditions
Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Recommended storage temperature: 2 - 8 °C.[Sigma-Aldrich; Safety Data Sheet for Dibenzo
Source: Hazardous Substances Data Bank (HSDB)
Dibenzo[def,p]chrysene incompatible materials
Strong oxidizers.
Source: Hazardous Substances Data Bank (HSDB)
Dibenzo[def,p]chrysene reactivity
Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as DIBENZO(A,L)PYRENE, and strong oxidizing agents. They can react exothermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Dibenzo[def,p]chrysene in the storage compatibility matrix →
10 · Questions
Dibenzo[def,p]chrysene — frequently asked questions
What is the CAS number of Dibenzo[def,p]chrysene?
The CAS number of Dibenzo[def,p]chrysene is 191-30-0. Its EC number is 205-886-4.
What is the chemical formula of Dibenzo[def,p]chrysene?
The molecular formula of Dibenzo[def,p]chrysene is C24H14 and its molecular weight is 302.4 g/mol.
What does a Dibenzo[def,p]chrysene label have to show?
Under CLP Annex VI the label for Dibenzo[def,p]chrysene carries the pictogram Health hazard and the signal word is Danger.
Is Dibenzo[def,p]chrysene flammable?
CLP Annex VI assigns Dibenzo[def,p]chrysene 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 Dibenzo[def,p]chrysene a carcinogen?
Yes. CLP Annex VI classifies Dibenzo[def,p]chrysene as a category 1A or 1B carcinogen and assigns it H350: may cause cancer. IARC places it in Group 2A: probably carcinogenic to humans.
What is the boiling point of Dibenzo[def,p]chrysene?
The boiling point reported for Dibenzo[def,p]chrysene is 630.6 °C (1167.1 °F) (HSDB).
What is the melting point of Dibenzo[def,p]chrysene?
The melting point reported for Dibenzo[def,p]chrysene is 164.5 °C (328.1 °F) (HSDB).
How should Dibenzo[def,p]chrysene be stored?
Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Recommended storage temperature: 2 - 8 °C.[Sigma-Aldrich; Safety Data Sheet for Dibenzo (Hazardous Substances Data Bank (HSDB))
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