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296082

Diethyl ether

≥99.7%, anhydrous, contains 1 ppm BHT as inhibitor

Synonym(s):

DEE, Et2O, Ethoxyethane, Ether, Ethyl ether

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100 mL

Estimated to ship onMay 07, 2026from市川市大町368

¥8,390
1 L

Estimated to ship onMay 07, 2026from市川市大町368

¥21,500
12 x 100 mL
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¥52,200

About This Item

Linear Formula:
(CH3CH2)2O
CAS Number:
Molecular Weight:
74.12
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352112
EC Number:
200-467-2
MDL number:
Beilstein/REAXYS Number:
1696894
Assay:
≥99.7%
Grade:
anhydrous
Bp:
34.6 °C
Vapor pressure:
28.66 psi ( 55 °C), 8.56 psi ( 20 °C)

¥8,390


Estimated to ship onMay 07, 2026Details


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Product Name

Diethyl ether, contains 1 ppm BHT as inhibitor, anhydrous, ≥99.7%

grade

anhydrous

Quality Level

vapor density

2.6 (vs air)

vapor pressure

28.66 psi ( 55 °C), 8.56 psi ( 20 °C)

assay

≥99.7%

form

liquid

autoignition temp.

320 °F

contains

1 ppm BHT as inhibitor

expl. lim.

36.5 %

impurities

<0.003% water, <0.005% water (100 mL pkg)

evapn. residue

<0.0003%

color

colorless

refractive index

n20/D 1.3530 (lit.)

bp

34.6 °C

mp

−116 °C (lit.)

density

0.706 g/mL at 25 °C (lit.)

SMILES string

CCOCC

InChI

1S/C4H10O/c1-3-5-4-2/h3-4H2,1-2H3

InChI key

RTZKZFJDLAIYFH-UHFFFAOYSA-N

General description

Diethyl ether is a highly volatile and flammable organic solvent. On storing for a long time, DEE can form organic peroxides, which can be suppressed by adding butylated hydroxytoluene (BHT) as a stabilizer. BHT scavenges the free radicals required for the peroxide formation.

Application

Diethyl ether has been used as a solvent for the preparation of 3-formyl-2,2,5,5-tetramethyl-1-oxy-pyrroline from 3-(N-methoxy-N-methylcarbamoyl)-2,2,5,5-tetramethyl-1-oxy-pyrroline using DIBAL.

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This Item
34614467684531690
grade

anhydrous

grade

reagent grade

grade

ACS reagent

grade

ACS reagent, puriss. p.a.

Quality Level

200

Quality Level

100

Quality Level

200

Quality Level

200

assay

≥99.7%

assay

≥98%

assay

≥98.0%

assay

≥99.8% (GC)

form

liquid

form

liquid

form

liquid

form

liquid

impurities

<0.003% water, <0.005% water (100 mL pkg)

impurities

≤0.5% (water)

impurities

≤0.0002 meq/g Titr. acid, ≤0.001% Carbonyl (as HCHO), ≤0.5% (water), ≤1 ppm Peroxide (as H2O2)

impurities

≤0.00003% peroxides (as H2O2), ≤0.0002 meq/g Titr. acid, ≤0.0005% free acid (as CH3COOH), ≤0.001% acetaldehyde (CH3CHO), ≤0.001% formaldehyde (HCHO), ≤0.1% water, <0.002% ketone (as CH3COCH3)

vapor pressure

28.66 psi ( 55 °C), 8.56 psi ( 20 °C)

vapor pressure

28.5 psi ( 55 °C), 8.38 psi ( 20 °C)

vapor pressure

28.5 psi ( 55 °C), 8.38 psi ( 20 °C)

vapor pressure

-


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pictograms

FlameExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Flam. Liq. 1 - STOT SE 3

target_organs

Central nervous system

supp_hazards

Storage Class

3 - Flammable liquids

flash_point_f

-40.0 °F - closed cup

flash_point_c

-40 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Group 4: Flammable liquids + Special flammables + Hazardous rank I

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

296082-18L:4.548173131429E12 + 296082-200L:4.548173131443E12 + 296082-100ML:4.548173131405E12 + 296082-1L:4.548173131436E12

jan



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The Merck Index: An Encyclopedia of Chemicals, Drugs,
Royal Society of Chemistry null
Site-directed spin-labeling of nucleotides and the use of in-cell EPR to determine long-range distances in a biologically relevant environment
Azarkh M, et al.
Nature Protocols, 8(1), 131-131 (2013)
Diethyl ether (DEE) as a renewable diesel fuel.
No. 972978. SAE technical paper (1997)



Global Trade Item Number

SKUGTIN
296082-100ML04061826649237
296082-12X100ML04061826649244
296082-18L04061826649251
296082-2.5L04061837532634
296082-6X1L04061826649275
296082-1L04061826649268
296082-250ML04061837532641

Questions

1–3 of 3 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. Could you please advise of the shelf life of 296082

    1 answer
    1. This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment.

      For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.

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