Formaldehyde dimethyl acetal
ALDRICH/47676 - absolute, over molecular sieve (H2O ≤0.01%), ≥99.0% (GC)
Synonym: Dimethoxymethane; Methylal
CAS Number: 109-87-5
Empirical Formula (Hill Notation): C3H8O2
Molecular Weight: 76.09
EC Number: 203-714-2
MDL Number: MFCD00008495
Linear Formula: CH2(OCH3)2
Product Type: Chemical
| assay | ≥99.0% (GC) |
| density | 0.860 g/mL at 20 °C (lit.) |
| grade | absolute |
| InChI | 1S/C3H8O2/c1-4-3-5-2/h3H2 |
| InChI key | NKDDWNXOKDWJAK-UHFFFAOYSA |
| quality | over molecular sieve (H2O ≤0.01%) |
| refractive index | n |
| SMILES string | COCOC |
| Application: | Formaldehyde dimethyl acetal may be used in the following studies: • Synthesis of methoxymethyl (MOM) ethers. • As an external cross-linker to form microporous polymers. • Dehydration of biological samples for scanning electron microscopy (SEM). |
| General description: | Formaldehyde dimethyl acetal (FDA, FDMA, FADMA, dimethoxymethane, DMM, methylal) is a biodegradable dimethyl acetal. It has been synthesized by condensing formaldehyde with methanol in the presence of acid catalyst. It is amphiphilic in nature with low viscosity, surface tension and boiling point. It is a flammable, highly volatile solvent with excellent dissolving power. It is reported to form trimethylorthoformate by anodic methoxylation in basic methanol. |
| Packaging: | 250 mL in Sure/Seal™ |
| Symbol |  GHS02 |
| Signal word | Danger |
| Hazard statements | H225 |
| Precautionary statements | P210 - P370 + P378 - P403 + P235 |
| Hazard Codes | F,Xi |
| Risk Statements | 11-19-36 |
| Safety Statements | 7/9-16-26-33 |
| RIDADR | UN1234 - class 3 - PG 2 - Methylal |
| WGK Germany | WGK 1 |
| Flash Point(F) | -0.4 °F - closed cup |
| Flash Point(C) | -18 °C - closed cup |
| Supplemental Hazard Statements | EUH019 |
| Purity | ≥99.0% (GC) |
| Density | 0.860 g/mL at 20 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |