Pentyl propanoate

C8H16O2

pentyl propanoate

CAS624-54-4
GHS02 Gefahrensymbol: Entzündbar – Flamme
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Identification

CAS Number
624-54-4
EC Number
210-852-7
UN Number
3272
Index Number
607-131-00-8
PubChem CID
12217

Physical-chemical properties

Molecular Formula
C8H16O2
Molar Mass
144.21 g/mol
IUPAC Name
pentyl propanoate

Chemical Identifiers

InChI
InChI=1S/C8H16O2/c1-3-5-6-7-10-8(9)4-2/h3-7H2,1-2H3
InChI Key
TWSRVQVEYJNFKQ-UHFFFAOYSA-N

Overview

Pentyl propanoate (CAS 624-54-4) is an aliphatic ester compound with characteristic fruity odor properties and flammable liquid classification. This organic ester, also known by its IUPAC name pentyl propanoate, represents a significant compound in the family of alkyl esters with the molecular formula C8H16O2 and molecular weight of 144.21 g/mol. As a member of the propanoate ester series, this colorless liquid exhibits typical ester characteristics including moderate volatility and distinctive organoleptic properties that make it valuable across multiple industrial applications. From a safety perspective, pentyl propanoate is classified as a Class 3 flammable liquid under ADR regulations, requiring appropriate handling protocols and storage conditions. The compound carries GHS02 pictogram designation with a "Warning" signal word, indicating moderate hazard potential that necessitates proper ventilation and fire prevention measures during industrial use. Its Flam. Liq. 3 classification places it in the same category as many commonly used organic solvents and chemical intermediates. The compound finds primary applications in the fragrance and flavor industry due to its pleasant fruity aroma profile, serving as a key ingredient in synthetic flavor formulations. Additionally, it functions as an effective solvent in various coating and adhesive applications, where its moderate evaporation rate and good solvency properties prove advantageous. Similar to related esters such as butyl butanoate, pentyl propanoate demonstrates excellent compatibility with polymer systems and serves as a plasticizer in specialized formulations. Industrial users also employ this ester in extraction processes and as a chemical intermediate in organic synthesis pathways. OYSI maintains reliable supply chains for pentyl propanoate to support European industrial customers across these diverse application sectors.

Safety & Classification

Warning
Classification:

Flam. Liq. 3

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H226

Flammable liquid and vapour.

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

Transport (ADR)

UN Number3272
ADR Class3
Packing GroupIII
Tunnel CodeD/E
Proper Shipping NamePentylpropionat
Marine PollutantNo

Frequently Asked Questions

What is pentyl propanoate?

Pentyl propanoate is an organic chemical compound with the molecular formula C8H16O2 and CAS number 624-54-4. This ester has a molecular weight of 144.21 g/mol and belongs to the class of propanoate esters. It is classified as a flammable liquid category 3 under GHS regulations, requiring appropriate safety precautions during handling and storage.

What are the physicochemical properties of pentyl propanoate?

Pentyl propanoate is a colorless to pale yellow liquid at room temperature with a characteristic fruity, apple-like odor typical of many esters. It has limited solubility in water but is miscible with most organic solvents including alcohols and ethers. The compound exhibits typical ester properties with moderate volatility and flammability characteristics.

What is pentyl propanoate used for?

Pentyl propanoate is primarily used as a flavoring agent in the food industry due to its pleasant fruity aroma reminiscent of apples. It serves as a fragrance component in cosmetics and personal care products, and as a solvent in various industrial applications. The compound is also utilized in the synthesis of other organic chemicals and as an intermediate in pharmaceutical manufacturing.

How to handle pentyl propanoate safely?

Pentyl propanoate requires careful handling due to its flammable nature (Flam. Liq. 3). Workers should wear appropriate personal protective equipment including safety goggles, chemical-resistant gloves, and protective clothing. Ensure adequate ventilation, eliminate ignition sources, and avoid generating vapors. Ground all equipment to prevent static electricity buildup during transfer operations.

How to store pentyl propanoate correctly?

Pentyl propanoate should be stored in a cool, dry, well-ventilated area away from heat sources, sparks, and open flames. Use appropriate containers that are tightly sealed and properly labeled. Store separately from strong oxidizing agents and incompatible materials. Maintain storage temperatures below 25°C and ensure compliance with local fire safety regulations for flammable liquids.

What to do in case of contact with pentyl propanoate?

In case of skin contact with pentyl propanoate, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water. For eye contact, rinse immediately with plenty of clean water for at least 15 minutes. If inhaled, move the person to fresh air immediately. Seek medical attention if irritation persists or if large quantities have been ingested.

How to dispose of pentyl propanoate appropriately?

Pentyl propanoate waste must be disposed of according to local and national environmental regulations as hazardous waste. Do not pour down drains or dispose of with regular waste. Contact licensed waste disposal companies for proper treatment and disposal. Small quantities may be incinerated in approved facilities with adequate pollution control measures.

How to transport pentyl propanoate?

Pentyl propanoate is classified under ADR class 3 (flammable liquids), packing group III for transportation purposes. It must be packaged in UN-approved containers with proper labeling including GHS02 pictogram and appropriate hazard markings. Transport vehicles must comply with ADR regulations for class 3 substances, including proper ventilation and fire safety equipment.

Is pentyl propanoate subject to specific regulations?

Pentyl propanoate is regulated under the CLP Regulation as a flammable liquid category 3 with warning signal word and GHS02 pictogram. It falls under REACH registration requirements for substances manufactured or imported above one tonne per year. The compound is not classified as an SVHC (Substance of Very High Concern) under current EU regulations.

Where to buy pentyl propanoate in Europe?

Pentyl propanoate is available through OYSI, a leading European distributor of specialty chemicals. OYSI provides high-quality pentyl propanoate with complete documentation including safety data sheets and certificates of analysis. As an established chemical distributor, OYSI ensures reliable supply chains and regulatory compliance for customers across Europe requiring this specialty ester.

Data Sources

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