Dimethoxymethane, 98%

Description

CAS: 109-87-5 | C3H8O2 | 76.095 g/mol

Used to protect diols as their methylene acetals, using TMS-OTf/2,6-lutidine:

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Used to protect diols as their methylene acetals, using TMS-OTf/2,6-lutidine:

Solubility
Soluble in water 20°C 330g/L.

Notes
Moisture Sensitive. Store away from oxidizing agents, moisture/water and acids. Store under inert gas.

Specifications

Chemical Identifiers

• CAS: 109-87-5
• Molecular Formula: C3H8O2
• Molecular Weight (g/mol): 76.095
• MDL Number: MFCD00008495
• InChI Key: NKDDWNXOKDWJAK-UHFFFAOYSA-N
• Synonym: methylal, formal, methane, dimethoxy, formaldehyde dimethyl acetal, dimethyl formal, anesthenyl, 2,4-dioxapentane, bis methoxy methane, methylene dimethyl ether, methoxymethyl methyl ether
• PubChem CID: 8020
• ChEBI: CHEBI:48341
• IUPAC Name: dimethoxymethane
• SMILES: COCOC

• Melting Point: -105°C
• Density: 0.863
• Boiling Point: 41°C to 42°C
• Flash Point: −17°C (1°F)
• Refractive Index: 1.3545
• Linear Formula: CH₃OCH₂OCH₃
• Quantity: 100 mL
• UN Number: UN1234
• Beilstein: 1697025
• Sensitivity: Moisture sensitive
• Merck Index: 14,6012
• Solubility Information: Soluble in water 20°C 330g/L.
• Formula Weight: 76.1
• Percent Purity: 98%
• Chemical Name or Material: Dimethoxymethane

Safety and Handling

Hazard Category	H225
Hazard Statement	GHS H Statement H225-H319 Highly flammable liquid and vapor. Causes serious eye irritation.
Precautionary Statement	P210-P233-P240-P241-P242-P243-P280-P303+P361+P353-P370+P378q-P501c
DOTInformation	Transport Hazard Class: 3; Packing Group: II; Proper Shipping Name: METHYLAL
EINECSNumber	203-714-2
RTECSNumber	PA8750000
TSCA	Yes
Recommended Storage	Ambient temperatures; Store under Nitrogen

SDS

RUO – Research Use Only