Heptan-4-one

C7H14O

heptan-4-one

CAS123-19-3
GHS02 Gefahrensymbol: Entzündbar – Flamme
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
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Identification

CAS Number
123-19-3
EC Number
204-608-9
UN Number
2710
Index Number
606-027-00-X
PubChem CID
31246

Physical-chemical properties

Molecular Formula
C7H14O
Molar Mass
114.19 g/mol
IUPAC Name
heptan-4-one

Chemical Identifiers

InChI
InChI=1S/C7H14O/c1-3-5-7(8)6-4-2/h3-6H2,1-2H3
InChI Key
HCFAJYNVAYBARA-UHFFFAOYSA-N

Overview

Heptan-4-one (CAS 123-19-3) is a ketone solvent with flammable properties and moderate acute toxicity classified under GHS warning categories. This seven-carbon ketone, also known by its IUPAC designation heptan-4-one, represents an important intermediate in organic synthesis and industrial applications. With a molecular formula of C7H14O and molecular weight of 114.19 g/mol, this colorless liquid exhibits typical ketone characteristics including good solvency properties and moderate volatility. The compound belongs to the aliphatic ketone family, sharing structural similarities with other industrial solvents such as cyclohexanone, though heptan-4-one offers distinct volatility and polarity characteristics. Safety considerations are paramount when handling heptan-4-one, as it carries flammable liquid category 3 classification and acute toxicity category 4 designation under GHS standards. The compound requires warning-level precautions, indicated by GHS02 and GHS07 pictograms, and falls under ADR class 3 for transportation purposes. Proper ventilation, fire prevention measures, and personal protective equipment are essential during storage and handling operations. Industrial applications of heptan-4-one primarily focus on its role as an extraction solvent and chemical intermediate. The compound finds use in pharmaceutical manufacturing processes, where its selective solvency properties prove valuable for purification and extraction procedures. Additionally, it serves as a building block in organic synthesis, particularly in the production of specialty chemicals and fragrance compounds. Like 5-methylhexan-2-one, heptan-4-one demonstrates effectiveness in specific extraction applications where controlled volatility is required. OYSI maintains reliable supply chains for heptan-4-one, ensuring consistent availability for European industrial customers requiring this specialized ketone solvent.

Safety & Classification

Warning
Classification:

Flam. Liq. 3; Acute Tox. 4 *

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H226

Flammable liquid and vapour.

H332

Harmful if inhaled.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Inhalation

Harmful

Measures if vapours or dust are inhaled

First Aid Actions

  • +P304IF INHALED:
  • +P340Remove person to fresh air and keep comfortable for breathing.
  • +P311Call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number2710
ADR Class3
Packing GroupIII
Tunnel CodeD/E
Proper Shipping NameDipropylketon
Marine PollutantNo

Frequently Asked Questions

What is heptan-4-one?

Heptan-4-one is an organic chemical compound with the molecular formula C7H14O and CAS number 123-19-3. It belongs to the ketone family, specifically classified as a seven-carbon chain ketone with the carbonyl group positioned at the fourth carbon. With a molecular weight of 114.19 g/mol, this substance appears as a colorless liquid with a characteristic ketone odor and is commonly used as an industrial solvent and chemical intermediate.

What are the physicochemical properties of heptan-4-one?

Heptan-4-one is a colorless liquid at room temperature with a distinctive sweet, fruity ketone odor. It has limited solubility in water due to its hydrophobic hydrocarbon chain, but readily dissolves in organic solvents such as alcohols, ethers, and other ketones. The compound exhibits typical ketone reactivity and has a relatively low vapor pressure, making it suitable for various industrial applications requiring moderate volatility.

What is heptan-4-one used for?

Heptan-4-one is primarily used as an industrial solvent for resins, lacquers, and coatings due to its excellent solvency properties. It serves as a chemical intermediate in organic synthesis and pharmaceutical manufacturing. The compound is also utilized in the production of specialty chemicals, flavoring agents, and as a cleaning agent in industrial processes. Its moderate volatility makes it suitable for applications requiring controlled evaporation rates.

How to handle heptan-4-one safely?

Heptan-4-one requires careful handling due to its flammable nature and potential toxicity. Always wear appropriate personal protective equipment including safety goggles, chemical-resistant gloves, and protective clothing. Ensure adequate ventilation to prevent vapor accumulation and avoid ignition sources. Handle in well-ventilated areas or under fume hoods, and use grounding procedures to prevent static electricity buildup during transfer operations.

How to store heptan-4-one correctly?

Heptan-4-one should be stored in a cool, dry, well-ventilated area away from heat sources, ignition sources, and direct sunlight. Use appropriate containers made of compatible materials and ensure they are tightly sealed to prevent vapor escape. Store separately from strong oxidizing agents, acids, and bases to prevent incompatible reactions. Maintain storage temperature below 25°C and implement fire prevention measures in storage areas.

What to do in case of contact with heptan-4-one?

In case of skin contact with heptan-4-one, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If eye contact occurs, rinse eyes with clean water for 15-20 minutes and seek medical attention. In case of inhalation, move the person to fresh air immediately. If ingested, do not induce vomiting and seek immediate medical attention.

How to dispose of heptan-4-one properly?

Heptan-4-one must be disposed of according to local and national waste regulations as a hazardous chemical waste. Contact licensed waste disposal companies specialized in handling flammable organic solvents. Do not dispose of down drains, sewers, or with regular waste. Small quantities can be recovered through distillation for reuse, while contaminated materials should be treated as hazardous waste requiring proper documentation and disposal procedures.

How to transport heptan-4-one?

Heptan-4-one is classified under ADR Class 3 (flammable liquids), Packing Group III for transportation purposes. It must be packaged in UN-approved containers with appropriate labeling including GHS02 and GHS07 pictograms. Transport vehicles must comply with ADR regulations for flammable liquids, including proper ventilation, fire prevention equipment, and driver certification. Shipping documentation must include proper shipping names and hazard classifications.

Is heptan-4-one subject to specific regulations?

Heptan-4-one is regulated under the CLP Regulation with classifications including Flammable Liquid Category 3 and Acute Toxicity Category 4. It must be registered under REACH regulation for commercial use in the European Union. The substance is not currently listed as a Substance of Very High Concern (SVHC). Users must comply with workplace safety regulations and provide appropriate safety data sheets to downstream users.

Where to buy heptan-4-one in Europe?

Heptan-4-one is available through OYSI, a trusted European distributor of technical chemicals. OYSI provides high-quality heptan-4-one with complete documentation including safety data sheets and certificates of analysis. As a specialized chemical distributor, OYSI ensures compliance with European regulations and offers reliable supply chain management for industrial customers across Europe requiring this ketone solvent for their operations.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.