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ChemicalBook >> CAS DataBase List >> Dimethoxymethane

Dimethoxymethane

Dimethoxymethane price.
  • $14 - $368
  • Product name: Dimethoxymethane
  • CAS: 109-87-5
  • MF: C3H8O2
  • MW: 76.09
  • EINECS:203-714-2
  • MDL Number:MFCD00008495
  • Synonyms:bis(methoxy)methane ;dimethoxy-methan ;Dimethylacetal formaldehyde;dioxapentane ;Formaldehyde methyl ketal;formaldehydemethylketal ;methanal,dimethylacetal ;Methane,dimethoxy-
16 prices
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Brand

  • Alfa Aesar
  • Sigma-Aldrich
  • TCI Chemical

Package

  • 8060171000
  • 25mL
  • 100ml
  • 8204930250
  • 250ml
  • 500ml
  • 1l
  • 8060172500
  • 8204931000
  • 2500ml
  • 2.5l
  • 18l
  • 1ml-f
  • 5ml-f
  • ManufacturerAlfa Aesar
  • Product numberA12055
  • Product descriptionDimethoxymethane, 98%
  • Packaging2500ml
  • Price$77.7
  • Updated2018-11-13
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA12055
  • Product descriptionDimethoxymethane, 98%
  • Packaging100ml
  • Price$21.8
  • Updated2018-11-13
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA12055
  • Product descriptionDimethoxymethane, 98%
  • Packaging500ml
  • Price$24.1
  • Updated2018-11-13
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number8.20493
  • Product descriptionFormaldehyde dimethyl acetal for synthesis. CAS 109-87-5, EC Number 203-714-2, chemical formula CH (OCH ) ., for synthesis
  • Packaging8204931000
  • Price$101
  • Updated2018-11-23
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number88789
  • Product descriptionFormaldehyde dimethyl acetal analytical standard
  • Packaging5ml-f
  • Price$121
  • Updated2018-11-13
  • Buy
  • ManufacturerSigma-Aldrich
  • Product numberD134651
  • Product descriptionDimethoxymethane ReagentPlus , 99%
  • Packaging2.5l
  • Price$121
  • Updated2018-11-13
  • Buy
  • ManufacturerSigma-Aldrich
  • Product numberD134651
  • Product descriptionDimethoxymethane ReagentPlus , 99%
  • Packaging18l
  • Price$368
  • Updated2018-11-13
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number88789
  • Product descriptionFormaldehyde dimethyl acetal analytical standard
  • Packaging1ml-f
  • Price$30.4
  • Updated2018-11-13
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number8.20493
  • Product descriptionFormaldehyde dimethyl acetal for synthesis. CAS 109-87-5, EC Number 203-714-2, chemical formula CH (OCH ) ., for synthesis
  • Packaging8204930250
  • Price$31.3
  • Updated2018-11-23
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number8.06017
  • Product descriptionFormaldehyde dimethyl acetal for synthesis. CAS 109-87-5, EC Number 203-714-2, chemical formula CH (OCH ) ., for synthesis
  • Packaging8060171000
  • Price$34.3
  • Updated2018-11-23
  • Buy
  • ManufacturerSigma-Aldrich
  • Product numberD134651
  • Product descriptionDimethoxymethane ReagentPlus , 99%
  • Packaging100ml
  • Price$35.1
  • Updated2018-11-13
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number47676
  • Product descriptionFormaldehyde dimethyl acetal absolute, over molecular sieve (H2O ≤0.01%), ≥99.0% (GC)
  • Packaging250ml
  • Price$43.8
  • Updated2018-11-13
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number8.06017
  • Product descriptionFormaldehyde dimethyl acetal for synthesis. CAS 109-87-5, EC Number 203-714-2, chemical formula CH (OCH ) ., for synthesis
  • Packaging8060172500
  • Price$52.5
  • Updated2018-11-23
  • Buy
  • ManufacturerSigma-Aldrich
  • Product numberD134651
  • Product descriptionDimethoxymethane ReagentPlus , 99%
  • Packaging1l
  • Price$62.9
  • Updated2018-11-13
  • Buy
  • ManufacturerTCI Chemical
  • Product numberD0637
  • Product descriptionDimethoxymethane >98.0%(GC)
  • Packaging500mL
  • Price$29
  • Updated2018-11-22
  • Buy
  • ManufacturerTCI Chemical
  • Product numberD0637
  • Product descriptionDimethoxymethane >98.0%(GC)
  • Packaging25mL
  • Price$14
  • Updated2018-11-22
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
Alfa Aesar A12055 Dimethoxymethane, 98% 2500ml $77.7 2018-11-13 Buy
Alfa Aesar A12055 Dimethoxymethane, 98% 100ml $21.8 2018-11-13 Buy
Alfa Aesar A12055 Dimethoxymethane, 98% 500ml $24.1 2018-11-13 Buy
Sigma-Aldrich 8.20493 Formaldehyde dimethyl acetal for synthesis. CAS 109-87-5, EC Number 203-714-2, chemical formula CH (OCH ) ., for synthesis 8204931000 $101 2018-11-23 Buy
Sigma-Aldrich 88789 Formaldehyde dimethyl acetal analytical standard 5ml-f $121 2018-11-13 Buy
Sigma-Aldrich D134651 Dimethoxymethane ReagentPlus , 99% 2.5l $121 2018-11-13 Buy
Sigma-Aldrich D134651 Dimethoxymethane ReagentPlus , 99% 18l $368 2018-11-13 Buy
Sigma-Aldrich 88789 Formaldehyde dimethyl acetal analytical standard 1ml-f $30.4 2018-11-13 Buy
Sigma-Aldrich 8.20493 Formaldehyde dimethyl acetal for synthesis. CAS 109-87-5, EC Number 203-714-2, chemical formula CH (OCH ) ., for synthesis 8204930250 $31.3 2018-11-23 Buy
Sigma-Aldrich 8.06017 Formaldehyde dimethyl acetal for synthesis. CAS 109-87-5, EC Number 203-714-2, chemical formula CH (OCH ) ., for synthesis 8060171000 $34.3 2018-11-23 Buy
Sigma-Aldrich D134651 Dimethoxymethane ReagentPlus , 99% 100ml $35.1 2018-11-13 Buy
Sigma-Aldrich 47676 Formaldehyde dimethyl acetal absolute, over molecular sieve (H2O ≤0.01%), ≥99.0% (GC) 250ml $43.8 2018-11-13 Buy
Sigma-Aldrich 8.06017 Formaldehyde dimethyl acetal for synthesis. CAS 109-87-5, EC Number 203-714-2, chemical formula CH (OCH ) ., for synthesis 8060172500 $52.5 2018-11-23 Buy
Sigma-Aldrich D134651 Dimethoxymethane ReagentPlus , 99% 1l $62.9 2018-11-13 Buy
TCI Chemical D0637 Dimethoxymethane >98.0%(GC) 500mL $29 2018-11-22 Buy
TCI Chemical D0637 Dimethoxymethane >98.0%(GC) 25mL $14 2018-11-22 Buy

Properties

Melting point: :-105 °C
Boiling point: :41-43 °C
Density  :0.860 g/mL at 20 °C(lit.)
vapor density  :2.6 (vs air)
vapor pressure  :6.38 psi ( 20 °C)
refractive index  :n20/D 1.354
Flash point: :-18 °C
storage temp.  :2-8°C
solubility  :32.3 g/100 mL (16°C)
form  :Liquid
color  :Clear colorless
Odor :Mild, ethereal; chloroform-like.
PH :pH (12.5vol % , 25℃) : 4.5~6.6
explosive limit :1.6-17.6%(V)
Water Solubility  :32.3 g/100 mL (16 ºC)
Sensitive  :Moisture Sensitive
Merck  :14,6012
BRN  :1697025
Stability: :Stable. Extremely flammable. Readily forms explosive mixtures with air. Note low flash point and wide explosive limits. Incompatible with strong oxidizing agents, strong acids. May form explosive peroxides upon exposure to air.
CAS DataBase Reference :109-87-5(CAS DataBase Reference)
NIST Chemistry Reference :Methane, dimethoxy-(109-87-5)
EPA Substance Registry System :Methane, dimethoxy-(109-87-5)

Safety Information

Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233 Keep container tightly closed.
P240 Ground/bond container and receiving equipment.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P403+P235 Store in a well-ventilated place. Keep cool.
P501 Dispose of contents/container to..…

Description

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

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