Methyl Formate CAS 107-31-3
Methyl formate belongs to the family of formate esters. At ambient temperature, it is a colourless, clear and volatile liquid with a pleasant smell. It is miscible in water, alcohols and ethers, and undergoes saponification when exposed to water and alkaline solutions. This ester tends to hydrolyze readily under humid conditions. Its vapour may create explosive mixtures when mixed with air, with an explosion limit ranging from 6.0% to 20.0% by volume. Serving as a valuable intermediate for organic synthesis, methyl formate finds extensive use in the manufacturing of fragrances, solvents, synthetic chemical compounds, bactericides and insecticides.

Melting point | -100 °C (lit.) |
Boiling point | 32-34 °C (lit.) |
density | 0.974 g/mL at 20 °C (lit.) |
vapor density | 2.1 (vs air) |
vapor pressure | 32.91 psi ( 55 °C) |
refractive index | n20/D 1.343(lit.) |
Fp | −16 °F |
storage temp. | Store below +30°C. |
solubility | 300g/l, 25% soluble in water, miscible with alcohol, Propylene glycol, Glycerin and oils. |
form | Liquid |
color | Clear colorless |
Odor | Pleasant; agreeable. |
PH | 4-5 (200g/l, H2O, 20℃) |
explosive limit | 5-23%(V) |
Odor Threshold | 130ppm |
Odor Type | fruity |
biological source | synthetic |
Water Solubility | 300 G/L (20 ºC) |
Thermal Conductivity | 0.187 W/(m·K) at 25 ℃ |
λmax | λ: 259 nm Amax: 1.00 |
λ: 260 nm Amax: 0.70 | |
λ: 265 nm Amax: 0.20 | |
λ: 270 nm Amax: 0.04 | |
λ: 310-400 nm Amax: 0.01 | |
Merck | 146077 |
BRN | 1734623 |
Henry's Law Constant | 0.90 at 5.00 °C, 1.18 at 10.00 °C, 1.51 at 15.00 °C, 1.91 at 20.00 °C, 2.36 at 25.00 °C (column stripping-UV, Kutsuna et al., 2005) |
Exposure limits | TLV-TWA 100 ppm (~250 mg/m3) (ACGIH, MSHA, and OSHA); TLV-STEL 150 ppm (~375 mg/m3) (ACGIH); IDLH 5000 ppm (NIOSH). |
Dielectric constant | 8.5(20℃) |
Stability: | Stable. Extremely flammable. Readily forms explosive mixtures with air. Note low flash point and very wide explosion limits. Incompatible with oxidizing agents. |
Major Application | cleaning products |
cosmetics | |
food and beverages | |
personal care | |
InChI | 1S/C2H4O2/c1-4-2-3/h2H,1H3 |
InChIKey | TZIHFWKZFHZASV-UHFFFAOYSA-N |
SMILES | [H]C(=O)OC |
LogP | -0.21 at 25℃ |
CAS DataBase Reference | 107-31-3(CAS DataBase Reference) |
NIST Chemistry Reference | Methyl formate(107-31-3) |
EPA Substance Registry System | Methyl formate (107-31-3) |

Product Application of CAS#107-31-3
Methyl formate acts as a feedstock for manufacturing cellulose acetate and DMF. Additionally, it functions as a solvent for the pesticide carbendazim, a curing agent for phenolic resins, and a fumigating agent for fruits and multiple tobacco commodities.


