Dimethyl oxalate
ALDRICH/135623 - ReagentPlus®, 99%
Synonym: Methyl oxalate
CAS Number: 553-90-2
Empirical Formula (Hill Notation): C4H6O4
Molecular Weight: 118.09
EC Number: 209-053-6
MDL Number: MFCD00008442
Linear Formula: CH3OCOCOOCH3
Product Type: Chemical
| assay | 99% |
| bp | 163.5 °C (lit.) |
| density | 1.148 g/mL at 25 °C (lit.) |
| form | powder |
| functional group | ester |
| InChI | 1S/C4H6O4/c1-7-3(5)4(6)8- |
| InChI key | LOMVENUNSWAXEN-UHFFFAOYSA |
| mp | 50-54 °C (lit.) |
| product line | ReagentPlus® |
| Quality Level | 100 ![]() |
| refractive index | n |
| SMILES string | COC(=O)C(=O)OC |
| solubility | ethanol: soluble 50 mg/mL, clear to very slightly hazy, colorless |
| Application: | Dimethyl oxalate (DMO) was used as alternate fuel in direct oxidation fuel cell. DMO was used to study the IR spectra of DMO isolated in noble gas low-temperature matrices. |
| General description: | Dimethyl oxalate undergoes Cu/SiO2 catalyzed hydrogenation to yield ethylene glycol. It undergoes selective gas-phase hydrogenation catalyzed by Ag/SiO2 to yield corresponding alcohol. |
| Legal Information: | ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Packaging: | 5, 100, 500 g in glass bottle |
| Symbol | ![]() GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H302 - H314 |
| Precautionary statements | P260 - P270 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | Xi |
| Risk Statements | 36/38 |
| Safety Statements | 26-36/37 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | 167.0 °F - closed cup |
| Flash Point(C) | 75 °C - closed cup |
| Purity | 99% |
| bp | 163.5 °C (lit.) |
| mp | 50-54 °C (lit.) |
| Density | 1.148 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |



