Substance profile
2,4,4-Trimethyl-1-pentene
2,4,4-Trimethyl-1-pentene is a colorless liquid with a gasoline-like odor.
01 · Identification
What 2,4,4-Trimethyl-1-pentene is
2,4,4-Trimethyl-1-pentene is a colorless liquid with a gasoline-like odor. Its molecular formula is C8H16 and its molecular weight is 112.21 g/mol. It boils at 101 °C, melts at -93.5 °C.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 3rd degree.
02 · Identifiers
2,4,4-Trimethyl-1-pentene identifiers and molecular data
2,4,4-Trimethyl-1-pentene CAS number and EC number
2,4,4-Trimethyl-1-pentene molecular formula and molecular weight
Other names for 2,4,4-Trimethyl-1-pentene
- 2,4,4-trimethylpent-1-ene
03 · GHS classification
2,4,4-Trimethyl-1-pentene hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
2,4,4-Trimethyl-1-pentene pictograms and signal word
2,4,4-Trimethyl-1-pentene hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Flammable liquids GHS chapter 2.6 | Category 2 | H225 | GHS02 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 2 | H411 | GHS09 |
2,4,4-Trimethyl-1-pentene hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H225 | Highly flammable liquid and vapour. |
| H411 | Toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to 2,4,4-Trimethyl-1-pentene. 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 2,4,4-Trimethyl-1-pentene
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 2,4,4-Trimethyl-1-pent… 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
2,4,4-Trimethyl-1-pentene precautionary statements
CLP Annex VI assigns 8 precautionary statements to 2,4,4-Trimethyl-1-pentene. 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.
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
2,4,4-Trimethyl-1-pentene 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 | 2,4,4-триметилпент-1-ен |
| Spanish español | 2,4,4-Trimetilpent-1-eno |
| Czech čeština | 2,4,4-trimethylpent-1-en |
| Danish dansk | 2,4,4-trimethylpent-1-en |
| German Deutsch | 2,4,4-Trimethylpent-1-en |
| Estonian eesti | 2,4,4-trimetüülpent-1-een |
| Greek ελληνικά | 2,4,4-τριμεθυλοπεντ-1-ένιο |
| English English | 2,4,4-trimethylpent-1-ene |
| French français | 2,4,4-triméthylpent-1-ène |
| Croatian hrvatski | 2,4,4-trimetilpent-1-en |
| Italian italiano | 2,4,4-trimetilpent-1-ene |
| Latvian latviešu | 2,4,4-trimetilpent-1-ēns |
| Lithuanian lietuvių | 2,4,4-trimetilpent-1-enas |
| Hungarian magyar | 2,4,4-trimetilpent-1-én |
| Maltese Malti | 2,4,4-trimetilpent-1-en |
| Dutch Nederlands | 2,4,4-trimethylpent-1-een |
| Polish polski | 2,4,4-trimetylopent-1-en diizobutylen |
| Portuguese português | 2,4,4-trimetilpent-1-eno |
| Romanian română | 2,4,4-trimetilpent-1-enă |
| Slovak slovenčina | 2,4,4-trimetylpent-1-én |
| Slovenian slovenščina | 2,4,4-trimetilpent-1-en |
| Finnish suomi | 2,4,4-trimetyyli-1-penteeni |
| Swedish svenska | 2,4,4-trimetylpent-1-en |
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
2,4,4-Trimethyl-1-pentene GHS label elements
Everything CLP Annex VI fixes for 2,4,4-Trimethyl-1-pentene, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
2,4,4-Trimethyl-1-pentene
- Highly flammable liquid and vapour.
- Toxic to aquatic life with long lasting effects.
- Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
- Keep container tightly closed.
- Use explosion-proof [electrical/ventilating/lighting/…] equipment.
- Use only non-sparking tools.
- Avoid release to the environment.
- Collect spillage.
- Store in a well-ventilated place.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open 2,4,4-Trimethyl-1-pentene in the GHS label constructor →
07 · Health hazards
2,4,4-Trimethyl-1-pentene health hazards and exposure limits
2,4,4-Trimethyl-1-pentene hazard summary
A skin, eye, and respiratory tract irritant; [ICSC] Inhalation of high concentrations can cause CNS depression; May act as a simple asphyxiant at high vapor concentrations; [HSDB] An irritant; [MSDSonline] A CNS depressant; [AIHA]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
2,4,4-Trimethyl-1-pentene 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.
2,4,4-Trimethyl-1-pentene boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 101.4 °C (214.5 °F) | HSDB | |
| 101 °C (213.8 °F) | ICSC | ||
| 101.4 °C (214.5 °F) | at 760 mmHg | DOE PAC |
2,4,4-Trimethyl-1-pentene melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -93.5 °C (-136.3 °F) | HSDB | |
| -93 °C (-135.4 °F) | ICSC |
2,4,4-Trimethyl-1-pentene density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.7 g/cm³ | ICSC | |
| 0.715 g/cm³ | at 20 °C | HSDB |
2,4,4-Trimethyl-1-pentene solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Insoluble in water. Soluble in ethyl ether, benzene, carbon tetrachloride | HSDB | |
| Solubility in water: none | ICSC |
2,4,4-Trimethyl-1-pentene vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 44.7 mmHg | at 25 °C | HSDB |
| 75.0062 mmHg | at 38 °C | ICSC |
2,4,4-Trimethyl-1-pentene flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | -5 °C (23 °F) | HSDB |
2,4,4-Trimethyl-1-pentene autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 391.11 °C (736 °F) | HSDB | |
| 391 °C (735.8 °F) | ICSC |
2,4,4-Trimethyl-1-pentene lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 0.8 % by volume | HSDB |
2,4,4-Trimethyl-1-pentene upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 4.8 % by volume | HSDB |
2,4,4-Trimethyl-1-pentene vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 3.8 (air = 1) | HSDB | |
| 3.9 (air = 1) | ICSC |
2,4,4-Trimethyl-1-pentene critical temperature and pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Critical temperature and pressure | 286.67 °C (548 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
2,4,4-Trimethyl-1-pentene 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.
2,4,4-Trimethyl-1-pentene fire potential
FIRE HAZARD: DANGEROUS, WHEN EXPOSED TO HEAT OR FLAME; CAN REACT VIGOROUSLY WITH OXIDIZING MATERIALS.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
2,4,4-Trimethyl-1-pentene storage and handling
2,4,4-Trimethyl-1-pentene safe storage
Fireproof. Separated from strong oxidants. Cool. Keep in a well-ventilated room.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
2,4,4-Trimethyl-1-pentene storage conditions
STORAGE TEMPERATURE: AMBIENT; VENTING: OPEN (FLAME ARRESTER) OR PRESSURE-VACUUM.
Source: Hazardous Substances Data Bank (HSDB)
2,4,4-Trimethyl-1-pentene incompatible materials
MIXING DIISOBUTYLENE /WITH CHLOROSULFONIC ACID, OLEUM, OR 96% SULFURIC ACID/ ... IN A CLOSED CONTAINER CAUSED TEMPERATURE & PRESSURE TO INCREASE.
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check 2,4,4-Trimethyl-1-pentene in the storage compatibility matrix →
11 · Questions
2,4,4-Trimethyl-1-pentene — frequently asked questions
What is the CAS number of 2,4,4-Trimethyl-1-pentene?
The CAS number of 2,4,4-Trimethyl-1-pentene is 107-39-1. Its EC number is 203-486-4.
What is the chemical formula of 2,4,4-Trimethyl-1-pentene?
The molecular formula of 2,4,4-Trimethyl-1-pentene is C8H16 and its molecular weight is 112.21 g/mol.
What does a 2,4,4-Trimethyl-1-pentene label have to show?
Under CLP Annex VI the label for 2,4,4-Trimethyl-1-pentene carries the pictograms Flame and Environment and the signal word is Danger.
Is 2,4,4-Trimethyl-1-pentene flammable?
Yes. CLP Annex VI assigns 2,4,4-Trimethyl-1-pentene H225 — highly flammable liquid and vapour. The flash point reported for it is -5 °C (23 °F) (HSDB).
Is 2,4,4-Trimethyl-1-pentene a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for 2,4,4-Trimethyl-1-pentene. 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 boiling point of 2,4,4-Trimethyl-1-pentene?
The boiling point reported for 2,4,4-Trimethyl-1-pentene is 101.4 °C (214.5 °F) (HSDB).
What is the melting point of 2,4,4-Trimethyl-1-pentene?
The melting point reported for 2,4,4-Trimethyl-1-pentene is -93.5 °C (-136.3 °F) (HSDB).
How should 2,4,4-Trimethyl-1-pentene be stored?
CLP Annex VI assigns 2,4,4-Trimethyl-1-pentene the storage statement P403. STORAGE TEMPERATURE: AMBIENT; VENTING: OPEN (FLAME ARRESTER) OR PRESSURE-VACUUM. (Hazardous Substances Data Bank (HSDB))
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