Substance profile
Heptan-2-one
Heptan-2-one is a colorless to white liquid with a penetrating fruity odor.
01 · Identification
What Heptan-2-one is
Heptan-2-one is a colorless to white liquid with a penetrating fruity odor. Its molecular formula is C7H14O and its molecular weight is 114.19 g/mol. It boils at 152 °C, melts at -35.5 °C, is soluble in water.
Under the GHS it carries the signal word Warning. It is classed as flammable agents - 2nd degree.
02 · Identifiers
Heptan-2-one identifiers and molecular data
Heptan-2-one CAS number and EC number
Heptan-2-one molecular formula and molecular weight
Other names for Heptan-2-one
- methyl amyl ketone
03 · GHS classification
Heptan-2-one hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Heptan-2-one pictograms and signal word
Heptan-2-one hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Flammable liquids GHS chapter 2.6 | Category 3 | H226 | GHS02 |
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Acute toxicity - inhalation GHS chapter 3.1 | Category 4 | H332 | GHS07 |
Heptan-2-one hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H226 | Flammable liquid and vapour. |
| H332 | Harmful if inhaled. |
| H302 | Harmful if swallowed. |
This page lists only the codes assigned to Heptan-2-one. 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 Heptan-2-one
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 Heptan-2-one 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
Heptan-2-one precautionary statements
CLP Annex VI assigns 12 precautionary statements to Heptan-2-one. 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
Heptan-2-one 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 | хептан-2-он амилметилкетон |
| Spanish español | Heptan-2-ona metilamilcetona |
| Czech čeština | heptan-2-on methyl(pentyl)keton |
| Danish dansk | heptan-2-on methylpentylketon |
| German Deutsch | 2-Heptanon MethylpentylketonMethylamylketon |
| Estonian eesti | heptaan-2-oon metüülamüülketoon |
| Greek ελληνικά | επταν-2-όνη μεθυλαμυλοκετόνη |
| English English | heptan-2-one methyl amyl ketone |
| French français | heptan-2-one méthylamylcétone |
| Croatian hrvatski | heptan-2-on metil-amil-keton |
| Italian italiano | eptan-2-one metil amil chetone |
| Latvian latviešu | heptān-2-ons metilamilketons |
| Lithuanian lietuvių | 2-heptanonas metilamilketonas |
| Hungarian magyar | heptán-2-on metil-amil-keton |
| Maltese Malti | ettan-2-on keton tal-amil tal-metil |
| Dutch Nederlands | heptaan-2-on amyl(methyl)keton |
| Polish polski | heptan-2-on keton metylowo-pentylowyketon metylowo-n-amylowymetyloamyloketon |
| Portuguese português | heptan-2-ona amilmetilcetona |
| Romanian română | heptan-2-onă metil-amil-cetonă |
| Slovak slovenčina | heptán-2-ón metyl(pentyl)ketón |
| Slovenian slovenščina | heptan-2-on metil amil keton |
| Finnish suomi | heptan-2-oni metyyliamyyliketoni |
| Swedish svenska | heptan-2-on metylamylketon |
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
Heptan-2-one GHS label elements
Everything CLP Annex VI fixes for Heptan-2-one, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Heptan-2-one
- Flammable liquid and vapour.
- Harmful if inhaled.
- Harmful if swallowed.
- 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.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Do not eat, drink or smoke when using this product.
- Use only outdoors or in a well-ventilated area.
- IF SWALLOWED:
- IF INHALED:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Rinse mouth.
- Store in a well-ventilated place.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Heptan-2-one in the GHS label constructor →
07 · Health hazards
Heptan-2-one health hazards and exposure limits
Heptan-2-one hazard summary
A potential CNS depressant after inhalation; [CAMEO]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Heptan-2-one occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 100.0 [ppm] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| PEL | 100 ppm (465 mg/m³) | Occupational Safety and Health Administration (OSHA) |
| PEL | TWA 100 ppm (465 mg/m3) | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | 100 ppm (465 mg/m³) | Occupational Safety and Health Administration (OSHA) |
| REL | TWA 100 ppm (465 mg/m3) | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | 800 ppm (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | 800.0 [ppm] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | 800 ppm | 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
Heptan-2-one 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.
Heptan-2-one boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 151.5 °C (304.7 °F) | at 760 mmHg | HSDB |
| 151.67 °C (305 °F) | NIOSH | ||
| 148.89 °C (300 °F) | at 760 mmHg | CAMEO |
Heptan-2-one melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -35.5 °C (-31.9 °F) | HSDB | |
| -35.56 °C (-32 °F) | NIOSH | ||
| -35 °C (-31 °F) | CAMEO |
Heptan-2-one density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.8148 g/cm³ | HSDB | |
| 0.81 g/cm³ | NIOSH | ||
| 0.82 g/cm³ | CAMEO |
Heptan-2-one solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Soluble in alcohol and ether | HSDB | |
| 0.43% (by wt) in water | HSDB | ||
| Miscible with organic solvents | HSDB |
Heptan-2-one vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 3 mmHg | NIOSH | |
| 3.85 mmHg | at 25 °C | HSDB |
Heptan-2-one flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 38.89 °C (102 °F) | HSDB | |
| 47.22 °C (117 °F) | HSDB |
Heptan-2-one autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 393.33 °C (740 °F) | HSDB | |
| 392.78 °C (739 °F) | CAMEO | ||
| 393 °C (739.4 °F) | ICSC |
Heptan-2-one lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 1.1 % by volume | CAMEO | |
| 1 % by volume | ICSC |
Heptan-2-one upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 7.9 % by volume | CAMEO | |
| 5.5 % by volume | ICSC | ||
| 7.9 % by volume | at 66.11 °C | HSDB |
Heptan-2-one vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 3.9 (air = 1) | HSDB |
Heptan-2-one odor threshold
| Property | Value | Conditions | Source |
|---|---|---|---|
| Odor threshold | About 0.020 ppm | HSDB | |
| Detection: 0.14 mg/kg; recognition: 3.0 mg/kg | HSDB | ||
| 0.15 to 0.35 ppm | HSDB |
Heptan-2-one corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | Will attack some forms of plastic | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Heptan-2-one 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.
Heptan-2-one fire potential
A flammable liquid when exposed to heat or flame ...
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Heptan-2-one storage and handling
Heptan-2-one safe storage
Fireproof.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Heptan-2-one incompatible materials
Strong acids, alkalis, and oxidizers (Note: Will attack some forms of plastic).
Source: Hazardous Substances Data Bank (HSDB)
Heptan-2-one reactivity
N-AMYL METHYL KETONE reacts exothermically with many acids and bases to produce flammable gases (e.g., H2). The heat may be sufficient to start a fire in the unreacted portion. Reacts with reducing agents such as hydrides, alkali metals, and nitrides to produce flammable gas and heat. Incompatible with isocyanates, aldehydes, cyanides, peroxides, and anhydrides. Incompatible with many oxidizing agents including nitric acid, nitric acid/hydrogen peroxide mixture, and perchloric acid. May form peroxides (USCG, 1999).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Heptan-2-one in the storage compatibility matrix →
11 · Questions
Heptan-2-one — frequently asked questions
What is the CAS number of Heptan-2-one?
The CAS number of Heptan-2-one is 110-43-0. Its EC number is 203-767-1.
What is the chemical formula of Heptan-2-one?
The molecular formula of Heptan-2-one is C7H14O and its molecular weight is 114.19 g/mol.
What does a Heptan-2-one label have to show?
Under CLP Annex VI the label for Heptan-2-one carries the pictograms Flame and Exclamation mark and the signal word is Warning.
Is Heptan-2-one flammable?
Yes. CLP Annex VI assigns Heptan-2-one H226 — flammable liquid and vapour. The flash point reported for it is 38.89 °C (102 °F) (HSDB).
Is Heptan-2-one a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Heptan-2-one. 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 exposure limit for Heptan-2-one?
The US occupational exposure limit reported for Heptan-2-one is 100.0 [ppm] (Haz-Map, Information on Hazardous Chemicals and Occupational Diseases). Limits differ by country: the EU sets its own indicative and binding values, and the figure that applies at a given workplace is the one in the local regulation.
What is the boiling point of Heptan-2-one?
The boiling point reported for Heptan-2-one is 151.5 °C (304.7 °F), at 760 mmHg (HSDB).
What is the melting point of Heptan-2-one?
The melting point reported for Heptan-2-one is -35.5 °C (-31.9 °F) (HSDB).
How should Heptan-2-one be stored?
CLP Annex VI assigns Heptan-2-one the storage statement P403.
Nearby
Substances next to Heptan-2-one
Keep going: substances starting with H, or search the whole database by name, CAS number, pictogram or signal word.