| Identification | More | [Name]
1,1-Dimethoxyethane | [CAS]
534-15-6 | [Synonyms]
1,1-DIMETHOXYETHANE
ACETALDEHYDE DIMETHYL ACETAL
AKOS BBS-00004400
DIMETHYL ACETAL
ETHYLIDENE DIMETHYL ETHER
FEMA 3426
1,1-dimethoxy-ethan
1,1'-Dimethoxyetiane
acetaldehydemethylacetal
CH3CH(OCH3)2
Dimethyl aldehyde
dimethylaldehyde
Ethane,1,1-dimethoxy-
methylformyl
1 1-DIMETHOXYETHANE 97+%
Acetaldehyde dimethyl acetal, 96% (1,1-Dimethoxyethane)
Acetaldehydedimethylacetal,98+%
1,1-DIMETHOXYETHANE REAGENT
Acetaldehyde Dimethyl acetal (1,1-Dimethoxyethane)
ACETALDEHYDEDIMETHYLACETAL,TECHNICAL | [EINECS(EC#)]
208-589-8 | [Molecular Formula]
C4H10O2 | [MDL Number]
MFCD00008493 | [Molecular Weight]
90.12 | [MOL File]
534-15-6.mol |
| Chemical Properties | Back Directory | [Appearance]
clear colorless liquid | [Melting point ]
-113 °C | [Boiling point ]
64 °C(lit.) | [density ]
0.852 g/mL at 25 °C(lit.)
| [vapor density ]
3.1 (vs air)
| [vapor pressure ]
200 hPa (20 °C) | [FEMA ]
3426 | [refractive index ]
n20/D 1.367(lit.)
| [Fp ]
1 °F
| [storage temp. ]
Flammables area | [solubility ]
Chloroform (Sparingly) | [form ]
Oil | [color ]
Colourless | [Odor]
at 1.00 % in propylene glycol. sharp sweet alcohol ether green new mown hay | [Odor Type]
ethereal | [Water Solubility ]
Soluble | [Sensitive ]
Moisture Sensitive | [JECFA Number]
940 | [Merck ]
14,3226 | [BRN ]
1697039 | [Dielectric constant]
3.4900000000000002 | [LogP]
0.63 at 25℃ | [CAS DataBase Reference]
534-15-6(CAS DataBase Reference) | [NIST Chemistry Reference]
Ethane, 1,1-dimethoxy-(534-15-6) | [EPA Substance Registry System]
534-15-6(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
F | [Risk Statements ]
R11:Highly Flammable. | [Safety Statements ]
S9:Keep container in a well-ventilated place .
S16:Keep away from sources of ignition-No smoking .
S33:Take precautionary measures against static discharges . | [RIDADR ]
UN 2377 3/PG 2
| [WGK Germany ]
2
| [RTECS ]
AB2825000
| [F ]
10-21 | [TSCA ]
Yes | [HazardClass ]
3 | [PackingGroup ]
II | [HS Code ]
29091990 | [Safety Profile]
Mildly toxic by
inhalation, ingestion, and skin contact. A
skin and eye irritant. A very dangerous fire
hazard when exposed to heat, flame, or
oxiduzers. When exposed to heat or flame it
can react vigorously with oxidizing
materials. To fight fire, use foam, CO2, dry
chemical. When heated to decomposition it
emits acrid smoke and irritating fumes. See
also GLYCOL ETHERS. | [Hazardous Substances Data]
534-15-6(Hazardous Substances Data) | [Toxicity]
LD50 orally in rats: 6.5 g/kg; LC (in air) in rats: 16000 ppm (Smyth) |
| Hazard Information | Back Directory | [General Description]
A liquid with a sharp odor. Less dense than water. Flash point between 0-73°F. Mildly toxic by ingestion and inhalation. Severely irritates the skin and eyes. Used to make other chemicals. | [Reactivity Profile]
1,1-DIMETHOXYETHANE(534-15-6) may react violently with strong oxidizing agents. Can act as a weak base to form salts with strong acids and addition complexes with Lewis acids. In other reactions, which typically involve the breaking of the carbon-oxygen bond, ethers are relatively inert. | [Air & Water Reactions]
Highly flammable. May form unstable peroxides when exposed to oxygen. These products can sometimes be observed as clear crystals deposited on containers or along the surface of the liquid. Slightly soluble in water. | [Health Hazard]
Inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control may cause pollution. | [Fire Hazard]
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water. | [Chemical Properties]
1,1-Dimethoxybenzene has a sharp, sweet, alcohol, ether, green, new-mown-hay odor | [Chemical Properties]
clear colorless liquid | [Occurrence]
Reported found in raspberry, blackberry, strawberry, peas, fresh figs, hop oil, coffee, cognac, white wine
and tea.
| [Uses]
Acetaldehyde dimethyl acetal may be used in the preparation of glucoside derivatives of steganol. It may be used as polymer solvent for the encapsulation of water-soluble model protein, bovine serum albumin into biodegradable poly(D,L-lactic acid. | [Uses]
1,1-Dimethoxyethane is used as a reagent in the synthesis of tricyclic and tetracyclic 1,5-benzodiazepine derivatives as nevirapine analogues. | [Uses]
As Mering's mixture which is 2 vol dimethylacetal and 1 vol chloroform. | [Definition]
ChEBI: 1,1-dimethoxyethane is an acetal that is dimethoxymethane substituted by a methyl group at position 1. It has a role as a flavouring agent and a plant metabolite. It is an acetal and a diether. It is functionally related to a dimethoxymethane. | [Purification Methods]
Distil the dimethyl acetal through a fractionating column and fraction boiling at 63.8o/751mm is collected. It forms an azeotrope with MeOH. Alternatively purify it as for acetal above. It has been purified by GLC. [Beilstein 1 IV 3103.] |
| Questions And Answer | Back Directory | [Description]
1,1-Dimethoxyethane is an aliphatic hydrocarbon which is found in figs, leek, and black tea. It gives a sharp ethereal, fruity and green note. It is used as a flavoring agent in food. 1,1-Dimethoxyethane is also used as a reagent for the diol protection and condensation reactions.
| [Preparation]
To a flask equipped with a mechanical stirrer, condenser, and gas addition tube and containing 10 gm of a 6 3% solution of boron trifluoride in methanol is added 1.0 gm of mercuric oxide and 200 gm (6.25 moles) of methanol. Then 70 gm (3.13 moles) of acetylene is added with vigorous stirring at room temperature. After the reaction the catalyst is neutralized with aqueous potassium carbonate, the product is extracted into ether, dried, and distilled to afford 104 gm (37%), b.p. 64°-65°C.
| [Reference]
Evaluation of Certain Food Additives and Contaminants: Fifty-seventh report of the Joint FAO/WHO Expert Committee on Food Additives, 2001, ISBN 92-4-120909-7
M. J. Taschner, Encyclopedia of Reagents for Organic Synthesis, 2001, ISBN 9780471936237
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