Substance profile
1,4-Dimethylnaphthalene
1,4-Dimethylnaphthalene is a substance with a harmonised classification under EU CLP.
01 · Identification
What 1,4-Dimethylnaphthalene is
1,4-Dimethylnaphthalene is a substance with a harmonised classification under EU CLP.
Under the GHS it carries the signal word Danger.
02 · Identifiers
1,4-Dimethylnaphthalene identifiers and molecular data
1,4-Dimethylnaphthalene CAS number and EC number
03 · GHS classification
1,4-Dimethylnaphthalene hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
1,4-Dimethylnaphthalene pictograms and signal word
1,4-Dimethylnaphthalene 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 |
| Aspiration hazard GHS chapter 3.10 | Category 1 | H304 | GHS08 |
| 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 3 | H412 | — |
1,4-Dimethylnaphthalene hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H302 | Harmful if swallowed. |
| H304 | May be fatal if swallowed and enters airways. |
| H319 | Causes serious eye irritation. |
| H400 | Very toxic to aquatic life. |
| H412 | Harmful to aquatic life with long lasting effects. |
This page lists only the codes assigned to 1,4-Dimethylnaphthalene. 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 1,4-Dimethylnaphthalene
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 1,4-Dimethylnaphthalen… 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
1,4-Dimethylnaphthalene precautionary statements
CLP Annex VI assigns 13 precautionary statements to 1,4-Dimethylnaphthalene. 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
1,4-Dimethylnaphthalene 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 | 1,4-диметилнафтален |
| Spanish español | 1,4-Dimetilnaftaleno |
| Czech čeština | 1,4-dimethylnaftalen |
| Danish dansk | 1,4-dimethylnaphthalen |
| German Deutsch | 1,4-Dimethylnaphthalin |
| Estonian eesti | 1,4-dimetüülnaftaleen |
| Greek ελληνικά | 1,4-διμεθυλοναφθαλίνιο |
| English English | 1,4-dimethylnaphthalene |
| French français | 1,4-diméthylnaphtalène |
| Croatian hrvatski | 1,4-dimetilnaftalen |
| Italian italiano | 1,4-dimetilnaftalene |
| Latvian latviešu | 1,4-dimetilnaftalīns |
| Lithuanian lietuvių | 1,4-dimetilnaftalenas |
| Hungarian magyar | 1,4-dimetilnaftalin |
| Maltese Malti | 1,4-dimetilnaftalen |
| Dutch Nederlands | 1,4-dimethylnaftaleen |
| Polish polski | 1,4-dimetylonaftalen |
| Portuguese português | 1,4-dimetilnaftaleno |
| Romanian română | 1,4-dimetilnaftalină |
| Slovak slovenčina | 1,4-dimetylnaftalén |
| Slovenian slovenščina | 1,4-dimetilnaftalen |
| Finnish suomi | 1,4-dimetyylinaftaleeni |
| Swedish svenska | 1,4-dimetylnaftalen |
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
1,4-Dimethylnaphthalene GHS label elements
Everything CLP Annex VI fixes for 1,4-Dimethylnaphthalene, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
1,4-Dimethylnaphthalene
- Harmful if swallowed.
- May be fatal if swallowed and enters airways.
- Causes serious eye irritation.
- Very toxic to aquatic life.
- Harmful 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 1,4-Dimethylnaphthalene in the GHS label constructor →
07 · Health hazards
1,4-Dimethylnaphthalene health hazards and exposure limits
1,4-Dimethylnaphthalene hazard summary
May cause irritation; [MSDSonline] See Naphthalene and 2-Methylnaphthalene.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
1,4-Dimethylnaphthalene 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.
1,4-Dimethylnaphthalene vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.0084 mmHg | Haz-Map |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Questions
1,4-Dimethylnaphthalene — frequently asked questions
What is the CAS number of 1,4-Dimethylnaphthalene?
The CAS number of 1,4-Dimethylnaphthalene is 571-58-4. Its EC number is 209-335-9.
What does a 1,4-Dimethylnaphthalene label have to show?
Under CLP Annex VI the label for 1,4-Dimethylnaphthalene carries the pictograms Exclamation mark, Health hazard and Environment and the signal word is Danger.
Is 1,4-Dimethylnaphthalene flammable?
CLP Annex VI assigns 1,4-Dimethylnaphthalene 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 1,4-Dimethylnaphthalene a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for 1,4-Dimethylnaphthalene. 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.
Nearby
Substances next to 1,4-Dimethylnaphthalene
Keep going: substances starting with 0–9, or search the whole database by name, CAS number, pictogram or signal word.