Dimethoxymethane

Dimethoxymethane
Names
	Preferred IUPAC name Dimethoxymethane
	Other names Formal; Formaldehyde dimethyl ether; Methylal; Dimethylformal (DMFL); Formaldehyde dimethylacetal; Methoxymethyl methyl ether; Methylene dimethyl ether
Identifiers
CAS Number	109-87-5 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	1697025
ChEBI	CHEBI:48341 ;
ChEMBL	ChEMBL15537 ;
ChemSpider	13837190 ;
ECHA InfoCard	100.003.378
EC Number	203-714-2;
Gmelin Reference	100776
MeSH	Dimethoxymethane
PubChem CID	8020;
RTECS number	PA8750000;
UNII	7H1M4G2NUE ;
UN number	1234
CompTox Dashboard (EPA)	DTXSID1025564 ;
	InChI InChI=1S/C3H8O2/c1-4-3-5-2/h3H2,1-2H3 Key: NKDDWNXOKDWJAK-UHFFFAOYSA-N ; InChI=1/C3H8O2/c1-4-3-5-2/h3H2,1-2H3 Key: NKDDWNXOKDWJAK-UHFFFAOYAE;
	SMILES COCOC;
Properties
Chemical formula	C3H8O2
Molar mass	76.095 g·mol−1
Appearance	Colorless liquid
Odor	Chloroform-like
Density	0.8593 g cm−3 (at 20 °C)
Melting point	−105 °C (−157 °F; 168 K)
Boiling point	42 °C (108 °F; 315 K)
Solubility in water	33% (20 °C)
Vapor pressure	330 mmHg (20 °C)
Magnetic susceptibility (χ)	−47.3·10−6 cm3/mol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H315, H319, H335
Precautionary statements	P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, P501
Flash point	−18 °C (0 °F; 255 K)
Explosive limits	2.2–13.8%
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	5708 mg/kg (rabbit, oral)
LC50 (median concentration)	18000 ppm (mouse, 7 hr); 15000 ppm (rat); 18354 ppm (mouse, 7 hr)
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 1000 ppm (3100 mg/m3)
REL (Recommended)	TWA 1000 ppm (3100 mg/m3)
IDLH (Immediate danger)	2200 ppm
Related compounds
Related Ethers	Dimethoxyethane
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Dimethoxymethane, also called methylal, is a colorless flammable liquid with a low boiling point, low viscosity and excellent dissolving power. It has a chloroform-like odor and a pungent taste. It is the dimethyl acetal of formaldehyde. Dimethoxymethane is soluble in three parts water and miscible with most common organic solvents.

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