Methyl propanoate

C4H8O2

methyl propanoate

CAS554-12-1
GHS02 Gefahrensymbol: Entzündbar – Flamme
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
Danger

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Identification

CAS Number
554-12-1
EC Number
209-060-4
UN Number
1248
Index Number
607-027-00-2
PubChem CID
11124

Physical-chemical properties

Molecular Formula
C4H8O2
Molar Mass
88.11 g/mol
IUPAC Name
methyl propanoate

Chemical Identifiers

InChI
InChI=1S/C4H8O2/c1-3-4(5)6-2/h3H2,1-2H3
InChI Key
RJUFJBKOKNCXHH-UHFFFAOYSA-N

Overview

Methyl propanoate (CAS 554-12-1) is a short-chain alkyl ester with characteristic fruity odor and excellent solvent properties. This low molecular weight ester represents an important member of the alkyl propanoate family, widely utilized across various industrial applications due to its favorable combination of chemical stability and controlled volatility. With a molecular formula of C4H8O2 and molecular weight of 88.11 g/mol, methyl propanoate exhibits typical ester functionality while maintaining relatively low toxicity compared to many industrial solvents. The compound appears as a colorless liquid with a distinctive sweet, fruity aroma reminiscent of rum or apple. Its physical properties make it particularly suitable for applications requiring rapid evaporation and good solvency characteristics. However, methyl propanoate is classified as a flammable liquid (Category 2) and carries acute toxicity warnings (Category 4), necessitating appropriate handling procedures and safety measures during storage and use. Safety considerations include its classification under ADR Class 3 for transportation, with GHS02 and GHS07 pictograms indicating both fire hazard and health warnings. The "Danger" signal word reflects the need for careful handling protocols, particularly regarding ignition sources and ventilation requirements. Industrial applications primarily center around its use as a solvent in coatings, adhesives, and specialty chemical formulations. The compound also serves as an important intermediate in organic synthesis and finds application in flavor and fragrance industries. Unlike heavier aromatics such as ethylbenzene or styrene, methyl propanoate offers lower environmental persistence while maintaining effective solvency properties. OYSI maintains reliable supply chains for methyl propanoate, ensuring consistent availability for European industrial customers requiring this versatile ester compound.

Safety & Classification

Danger
Classification:

Flam. Liq. 2; Acute Tox. 4 *

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H225

Highly 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 Number1248
ADR Class3
Packing GroupII
Tunnel CodeD/E
Proper Shipping NameMethylpropionat
Marine PollutantNo

Frequently Asked Questions

What is methyl propanoate?

Methyl propanoate is an organic chemical compound with the molecular formula C4H8O2 and CAS number 554-12-1. This ester has a molecular weight of 88.11 g/mol and is classified as a flammable liquid with acute toxicity properties. It belongs to the propanoate ester family and is characterized by its relatively simple aliphatic structure, making it useful in various industrial applications as a solvent and chemical intermediate.

What are the physicochemical properties of methyl propanoate?

Methyl propanoate is a colorless liquid with a characteristic fruity, sweet odor typical of esters. It has moderate volatility and is miscible with most organic solvents including alcohols, ethers, and hydrocarbons. The compound has limited solubility in water due to its organic nature. Its boiling point is relatively low, contributing to its flammable characteristics, and it exhibits typical ester reactivity including hydrolysis under acidic or basic conditions.

What is methyl propanoate used for?

Methyl propanoate is primarily used as a solvent in industrial applications, particularly in coatings, paints, and varnishes. It serves as a chemical intermediate in organic synthesis for producing other esters and compounds. The substance is also employed in the fragrance and flavoring industries due to its pleasant fruity aroma. Additionally, it finds applications in cleaning formulations and as a component in specialty chemical products where its solvating properties are beneficial.

How to handle methyl propanoate safely?

Methyl propanoate requires careful handling due to its flammable and toxic properties (Flam. Liq. 2; Acute Tox. 4). Essential PPE includes chemical-resistant gloves, safety goggles, and appropriate respiratory protection in poorly ventilated areas. Work should be conducted away from ignition sources, sparks, and hot surfaces. Ensure adequate ventilation and use explosion-proof electrical equipment. Ground and bond containers during transfer operations. Have appropriate fire extinguishing equipment readily available.

How to store methyl propanoate correctly?

Methyl propanoate must be stored in a cool, dry, well-ventilated area away from heat sources, sparks, and open flames. Use original containers or appropriate chemical-resistant vessels with tight-fitting lids. Storage areas should be equipped with appropriate fire suppression systems and maintain temperatures below the substance's flash point. Keep away from oxidizing agents and strong acids or bases. Ensure storage complies with local flammable liquid storage regulations and ADR Class 3 requirements.

What to do in case of contact with methyl propanoate?

Methyl propanoate exposure requires immediate action due to its acute toxicity classification. For skin contact, remove contaminated clothing and wash thoroughly with soap and water for at least 15 minutes. If inhaled, move to fresh air immediately and seek medical attention if breathing difficulties occur. For eye contact, rinse continuously with clean water for 15 minutes and remove contact lenses if present. In case of ingestion, do not induce vomiting and seek immediate medical attention.

How to dispose of methyl propanoate appropriately?

Methyl propanoate disposal must comply with local and national hazardous waste regulations due to its flammable and toxic classification. The substance should be collected in appropriate containers and disposed of through licensed hazardous waste disposal facilities. Incineration at high temperatures with appropriate scrubbing systems is typically the preferred disposal method. Empty containers should be properly cleaned and disposed of according to local regulations. Never dispose of through regular drainage systems or municipal waste streams.

How to transport methyl propanoate?

Methyl propanoate is classified under ADR as Class 3 (flammable liquids), Packing Group II, requiring specific transport procedures. Packages must bear appropriate hazard labels (GHS02, GHS07) and the 'Danger' signal word. Vehicles must be equipped with appropriate fire extinguishing equipment and drivers require ADR certification. Transport containers must meet UN specification requirements and be properly sealed and labeled. Documentation must include appropriate shipping papers with emergency response information.

Is methyl propanoate subject to specific regulations?

Methyl propanoate is regulated under several European frameworks including CLP Regulation for classification and labeling, requiring GHS02 and GHS07 pictograms with 'Danger' signal word. It falls under REACH registration requirements for chemical substances. The compound is not currently listed as an SVHC (Substance of Very High Concern). Transport regulations under ADR apply due to its flammable classification. Industrial users must comply with workplace safety directives and national chemical safety legislation.

Where to buy methyl propanoate in Europe?

Methyl propanoate is available through OYSI, a European distributor specializing in technical chemical products. OYSI provides high-quality methyl propanoate with appropriate documentation including safety data sheets, certificates of analysis, and regulatory compliance information. As an established chemical distributor, OYSI ensures proper packaging, labeling according to CLP requirements, and ADR-compliant transport arrangements throughout Europe. Contact OYSI directly for specific grades, quantities, and technical specifications to meet your industrial requirements.

Data Sources

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