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Dimethoxymethane

CAS Number
109-87-5
EC Number
203-714-2
Chemical Formula
C3H8O2
Molecular Weight
76.09 g/mol

Description

Dimethoxymethane (CAS 109-87-5 ), commercially known as Methylal, is a fast-evaporating solvent used across pharmaceutical manufacturing, specialty chemical synthesis, and flavoring applications. Its low boiling point and clean evaporation profile make it a preferred choice where residue-free solvent performance is a procurement priority for industrial manufacturers and labs. In pharmaceutical manufacturing, Methylal functions as a reaction solvent and extraction medium where controlled evaporation and low residual contamination are critical to API quality. Flavor formulators incorporate it as a carrier solvent and flavoring agent, particularly in applications requiring rapid volatilization of aromatic compounds in various mixtures. In specialty chemical synthesis, it acts as a formaldehyde equivalent and catalyst precursor for producing polyoxymethylene dimethyl ethers and other acetal-based intermediates. Industrial cleaning and aerosol formulations also use it as a co-solvent to improve solvency and reduce VOC content in finished products across many different sectors. Dimethoxymethane is supplied as a clear liquid in drum and IBC quantities, with bulk tanker options available for larger industrial volumes and high-capacity manufacturing needs. Food-grade and pharmaceutical-grade specifications are available to meet FCC and USP compliance requirements. Technical-grade material is standard for industrial solvent use. Contact us for supply of Dimethoxymethane Request Quote

Other Names (Synonyms)

methylene glycol dimethylether | Methylene dimethyl ether | Methylal | Methoxymethyl methyl ether | Formaldehyde dimethylacetal | dimethyl formal | bis(methyloxy)methane | bis(methoxy)methane

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-105 °C
Boiling Point41.6 °C @ Press: 760 Torr
Density0.8593 g/cm³ @ Temp: 20 °C
Flash Point-18 °C
AppearanceMethylal is a colorless liquid with a pungent odor.
ColorClear colorless
OdorMild, ethereal
chloroform-like.
FormLiquid
Water Solubility32.3 g/100 mL (16 ºC)
Vapor Pressure6.38 psi ( 20 °C)
Refractive Indexn 20/D 1.354
pHpH (12.5vol % , 25℃) : 4.5~6.6
Log P0

Safety & Handling

Danger
GHS02· FlammableGHS07· Irritant

Hazard Statements

H225Highly Flammable liquid and vapor
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H336May cause drowsiness or dizziness

Precautionary Statements

P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233Keep container tightly closed.
P240Ground and bond container and receiving equipment.
P241Use explosion-proof equipment.
P242Use non-sparking tools.
P243Take action to prevent static discharges.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P235Store in a well-ventilated place. Keep cool.
P353IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29110000
UN Number1234
ADR Class3
Packing GroupII
Storage Class3 - Flammable liquids
WGK (Germany)1