Substance profile
Heptan-4-one
Heptan-4-one is a stable, colorless liquid with a pleasant odor.
01 · Identification
What Heptan-4-one is
Heptan-4-one is a stable, colorless liquid with a pleasant odor. Its molecular formula is C7H14O and its molecular weight is 114.19 g/mol. It boils at 144 °C, melts at -33 °C, is miscible with water.
Under the GHS it carries the signal word Warning. It is classed as flammable agents - 2nd degree.
02 · Identifiers
Heptan-4-one identifiers and molecular data
Heptan-4-one CAS number and EC number
Heptan-4-one molecular formula and molecular weight
Other names for Heptan-4-one
- di-n-propyl ketone
03 · GHS classification
Heptan-4-one hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Heptan-4-one pictograms and signal word
Heptan-4-one hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Flammable liquids GHS chapter 2.6 | Category 3 | H226 | GHS02 |
| Acute toxicity - inhalation GHS chapter 3.1 | Category 4 | H332 | GHS07 |
Heptan-4-one hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H226 | Flammable liquid and vapour. |
| H332 | Harmful if inhaled. |
This page lists only the codes assigned to Heptan-4-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-4-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-4-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-4-one precautionary statements
CLP Annex VI assigns 9 precautionary statements to Heptan-4-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-4-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-4-он ди- n -пропилкетон |
| Spanish español | Heptan-4-ona di- n -propilcetona |
| Czech čeština | heptan-4-on dipropylketon |
| Danish dansk | heptan-4-on dipropylketon |
| German Deutsch | 4-Heptanon Di- n -propylketon |
| Estonian eesti | heptaan-4-oon di- n -propüülketoon |
| Greek ελληνικά | επταν-4-όνη δι- n -προπυλοκετόνη |
| English English | heptan-4-one di- n -propyl ketone |
| French français | heptan-4-one di- n -propylcétone |
| Croatian hrvatski | heptan-4-on di- n -propil-keton |
| Italian italiano | eptan-4-one di-n-propilchetone |
| Latvian latviešu | heptān-4-ons di- n -propilketons |
| Lithuanian lietuvių | 4-heptanonas di-n-propilketonas |
| Hungarian magyar | heptán-4-on di- n -propil-keton |
| Maltese Malti | ettan-4-on keton tad-di- n -propil |
| Dutch Nederlands | heptaan-4-on di- n -propylketon |
| Polish polski | heptan-4-on keton dipropylowy |
| Portuguese português | heptan-4-ona di- n -propilcetona |
| Romanian română | heptan-4-onă di- n -propil-cetonă |
| Slovak slovenčina | heptán-4-ón di-n-propylketón |
| Slovenian slovenščina | heptan-4-on di- n -propil keton |
| Finnish suomi | heptan-4-oni di- n -propyyliketoni |
| Swedish svenska | heptan-4-on di- n -propylketon |
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-4-one GHS label elements
Everything CLP Annex VI fixes for Heptan-4-one, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Heptan-4-one
- Flammable liquid and vapour.
- Harmful if inhaled.
- 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.
- Use only outdoors or in a well-ventilated area.
- IF INHALED:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Store in a well-ventilated place.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Heptan-4-one in the GHS label constructor →
07 · Health hazards
Heptan-4-one health hazards and exposure limits
Heptan-4-one hazard summary
In rats, 400 ppm slows respiration, 825 ppm causes CNS depression, and 1600 ppm induces narcosis. Inhalation of 1200 ppm for 2 weeks causes mild liver enlargement. [ACGIH] Possible burns to eyes and skin; [CAMEO]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Heptan-4-one occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | none See Appendix G | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | 50 ppm (235 mg/m³) | Occupational Safety and Health Administration (OSHA) |
| REL | TWA 50 ppm (235 mg/m3) | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | N.D. | The National Institute for Occupational Safety and Health (NIOSH) |
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-4-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-4-one boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 144 °C (291.2 °F) | HSDB | |
| 143.89 °C (291 °F) | NIOSH | ||
| 143.89 °C (291 °F) | at 760 mmHg | CAMEO |
Heptan-4-one melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -33 °C (-27.4 °F) | HSDB | |
| -32.78 °C (-27 °F) | NIOSH |
Heptan-4-one density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.82 g/cm³ | NIOSH | |
| 0.8174 g/cm³ | at 20 °C | HSDB | |
| 0.8136 g/cm³ | at 20 °C | HSDB |
Heptan-4-one solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Miscible with ethanol, ethyl ether; very soluble in ligroin | HSDB | |
| Soluble in carbon tetrachloride | HSDB | ||
| In water, 3.19X10+3 mg/L at 25 °C | at 25 °C | HSDB |
Heptan-4-one vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 5 mmHg | NIOSH | |
| 5.2 mmHg | at 20 °C | HSDB |
Heptan-4-one flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 48.89 °C (120 °F) | closed cup | HSDB |
| 48.89 °C (120 °F) | NIOSH |
Heptan-4-one autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 430 °C (806 °F) | ICSC |
Heptan-4-one lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | Class II Combustible Liquid: Fl.P. at or above 100 °F and below 140 °F. | NIOSH | |
| Explosive limits , vol% in air: | ICSC |
Heptan-4-one vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 3.93 (air = 1) | HSDB | |
| 3.9 (air = 1) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Heptan-4-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-4-one fire potential
Flammable liquid when exposed to heat or flame
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Heptan-4-one storage and handling
Heptan-4-one peroxide formation
D*: Other compounds that may form peroxides
Source: Lab and Research Safety, University of Minnesota
Heptan-4-one safe storage
Fireproof. Separated from strong oxidants. Well closed.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Heptan-4-one storage conditions
Keep container tightly closed in a dry and well-ventilated place. Store in cool place. Recommended storage temperature: 2 - 8 °C.
Source: Hazardous Substances Data Bank (HSDB)
Heptan-4-one incompatible materials
Vapors may form explosive mixture with air.
Source: Hazardous Substances Data Bank (HSDB)
Heptan-4-one reactivity
DIPROPYL KETONE is incompatible with the following: Oxidizers (NIOSH, 2024).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Heptan-4-one in the storage compatibility matrix →
11 · Questions
Heptan-4-one — frequently asked questions
What is the CAS number of Heptan-4-one?
The CAS number of Heptan-4-one is 123-19-3. Its EC number is 204-608-9.
What is the chemical formula of Heptan-4-one?
The molecular formula of Heptan-4-one is C7H14O and its molecular weight is 114.19 g/mol.
What does a Heptan-4-one label have to show?
Under CLP Annex VI the label for Heptan-4-one carries the pictograms Flame and Exclamation mark and the signal word is Warning.
Is Heptan-4-one flammable?
Yes. CLP Annex VI assigns Heptan-4-one H226 — flammable liquid and vapour. The flash point reported for it is 48.89 °C (120 °F), closed cup (HSDB).
Is Heptan-4-one a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Heptan-4-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-4-one?
The US occupational exposure limit reported for Heptan-4-one is none See Appendix G (The National Institute for Occupational Safety and Health (NIOSH)). 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-4-one?
The boiling point reported for Heptan-4-one is 144 °C (291.2 °F) (HSDB).
What is the melting point of Heptan-4-one?
The melting point reported for Heptan-4-one is -33 °C (-27.4 °F) (HSDB).
How should Heptan-4-one be stored?
CLP Annex VI assigns Heptan-4-one the storage statement P403. Keep container tightly closed in a dry and well-ventilated place. Store in cool place. Recommended storage temperature: 2 - 8 °C. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Heptan-4-one
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