CAS 111-77-3: Diethylene Glycol Monomethyl Ether (C5H12O3)
Identity
| CAS Number | 111-77-3 |
| Molecular Formula | C5H12O3 |
| IUPAC Name | 2-(2-methoxyethoxy)ethanol |
| Molecular Weight | 120.15 g/mol |
| SMILES | COCCOCCO |
| Synonyms | DEGME, methyl carbitol, 2-(2-methoxyethoxy)ethanol, methyl diglycol |
2D Structure
Physical Properties
| Density | 1.021 g/mL at 25°C |
| Boiling Point | 194.0°C |
| Melting Point | -69.0°C |
| Flash Point | 93.0°C |
| Vapor Pressure | 0.02 kPa at 20°C |
| Refractive Index | nD = 1.426 |
| Dielectric Constant | ε = 14.0 |
Safety & GHS Classification
Irritant
- H302: Harmful if swallowed
Storage: Store in tightly sealed containers. Hygroscopic. Low toxicity. Keep away from strong oxidizers.
Material Compatibility Matrix
Plastics
| Material | Rating |
|---|---|
| PTFE | Excellent |
| PVC | Good |
| PE | Good |
| PP | Good |
| PEEK | Excellent |
| PVDF | Good |
Rubbers
| Material | Rating |
|---|---|
| Viton | Good |
| NBR | Good |
| EPDM | Excellent |
| Silicone | Good |
| FKM | Good |
Metals
| Material | Rating |
|---|---|
| Stainless 316 | Excellent |
| Aluminum | Good |
| Copper | Good |
| Brass | Good |
Applications
- Brake fluid component
- Paint and coating solvent
- Ink solvent
- Cleaning agent
- Textile dyeing assistant
- Chemical intermediate
- Hydraulic fluid component
External References: PubChem