English Safety Data Sheet Database 中文版 MSDS

Methyl valerate

CAS No. 624-24-8 | PubChem CID 12206
Section 1. Identification
Chemical NameMethyl valerate CAS No.624-24-8
Synonymsmethylpentanoate; methyln-valerate Chinese Name正戊酸甲酯
Molecular FormulaC6H2O2 Molecular Weight116.1583
UN No.3272 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS02 · Flammable
Hazard Statements H225
Precautionary Statements P210P233P240P241P242P243P280P303+P361+P353P370+P378P403+P235P501

Section 2. Hazards Identification

This chemical does not meet GHS hazard criteria for < 0.1% (1 of 1701) of reports.

H225 (92.8%): Highly Flammable liquid and vapor [Danger Flammable liquids]

P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 1701 reports by companies from 10 notifications to the ECHA C&L Inventory.

Reported as not meeting GHS hazard criteria per 1 of 1701 reports by companies.

There are 9 notifications provided by 1700 of 1701 reports by companies with hazard statement code(s).

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Section 4. First-Aid Measures

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

Section 5. Fire-Fighting Measures

Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. (NTP, 1992)

Section 6. Accidental Release Measures

Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 50 meters (150 feet) in all directions.

LARGE SPILL: Consider initial downwind evacuation for at least 300 meters (1000 feet).

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Section 7. Handling and Storage

SMALL SPILLS AND LEAKAGE: If you spill this chemical, FIRST REMOVE ALL SOURCES OF IGNITION. Then, use absorbent paper to pick up all liquid spill material. Your contaminated clothing and absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with 60-70% ethanol followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

STORAGE PRECAUTIONS: You should store this chemical in an explosion-proof refrigerator and keep it away from oxidizing materials. STORE AWAY FROM SOURCES OF IGNITION. (NTP, 1992)

Section 8. Exposure Controls / Personal Protection

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)

Section 9. Physical and Chemical Properties

Methyl valerate is a clear colorless to yellowish oily liquid. (NTP, 1992)

colourless to pale yellow, mobile liquid with a green, apple, pineapple odour

259.7 °F at 760 mmHg (NTP, 1992)

118.00 to 119.00 °C. @ 760.00 mm Hg

126-127 °C

72 °F (NTP, 1992)

less than 1 mg/mL at 72 °F (NTP, 1992)

5.06 mg/mL at 25 °C

soluble in propylene glycol, alcohol, most fixed oils; very slightly soluble in water

(in ethanol)

0.8947 at 68 °F (NTP, 1992) - Less dense than water; will float

0.883-0.895

63 mmHg at 124 °F ; 262 mmHg at 167 °F; 320 mmHg at 199 °F (NTP, 1992)

1.393-1.399

Boiling point

Chemical diffusion

Chemical shift

Diamagnetic susceptibility

Dielectric constant

Diffusion

Diffusive flux

Excess enthalpy

Fusion temperature

Heat of solution

Heat of sublimation

Magnetic susceptibility

Melting temperature

Mixing enthalpy

Optical coefficient

Phase diagram

Phase equilibrium

Phase transition

Refractive index

Sound absorption

Sound propagation

Sound velocity

Spin-spin coupling constant

Surface tension

Thermal expansion coefficient

Transition enthalpy

Section 10. Stability and Reactivity

Highly flammable. Insoluble in water.

Esters, Sulfate Esters, Phosphate Esters, Thiophosphate Esters, and Borate Esters

Highly Flammable

METHYL VALERATE is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. This compound reacts with oxidizing agents, bases and acids. (NTP, 1992)

Section 14. Transport Information

Flammable Liquid

Source: PubChem CID 12206 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 10:08:34.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.