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176567

Sigma-Aldrich

Acetaldehyde-d4

≥99 atom % D, ≥98% (CP)

Synonym(s):

Tetradeuteroacetaldehyde

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About This Item

Linear Formula:
CD3CDO
CAS Number:
Molecular Weight:
48.08
Beilstein:
1743039
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.12
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vapor pressure

14.05 psi ( 20 °C)

Quality Level

isotopic purity

≥99 atom % D

Assay

≥98% (CP)

form

liquid

autoignition temp.

347 °F

technique(s)

protein expression: suitable

refractive index

n20/D 1.3321 (lit.)

bp

21 °C (lit.)

mp

-125 °C (lit.)

density

0.856 g/mL at 25 °C

mass shift

M+4

storage temp.

−20°C

SMILES string

[2H]C(=O)C([2H])([2H])[2H]

InChI

1S/C2H4O/c1-2-3/h2H,1H3/i1D3,2D

InChI key

IKHGUXGNUITLKF-MZCSYVLQSA-N

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Packaging

This product may be available from bulk stock and can be packaged on demand. For information on pricing, availability and packaging, please contact Stable Isotopes Customer Service.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Carc. 1B - Eye Irrit. 2 - Flam. Liq. 1 - Muta. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

-40.0 °F - closed cup

Flash Point(C)

-40 °C - closed cup


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Yukihiro Esaka et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 36(7), 877-880 (2020-01-28)
The deuteration of N2-ethyl-2'-deoxyguanosine (Et-dG), which is a DNA adduct generated from acetaldehyde, was studied by the addition reaction of acetaldehyde-d4 to 2'-deoxyguanosine (dG) in deuterium oxide (D2O), with the aim to obtain an isotope internal standard for the liquid
Angelique Vandemoortele et al.
Food research international (Ottawa, Ont.), 140, 110063-110063 (2021-03-03)
The reactivity of malondialdehyde in saturated glycerol triheptanoate oil was studied over a wide temperature range (298.15-453.15 K). With respect to the non-ideal character of a lipid medium, a kinetic model was proposed that described the experimental malondialdehyde data by a
Cecilia Sala et al.
European journal of mass spectrometry (Chichester, England), 23(2), 64-69 (2017-06-29)
Recently, the formation of carbonyl compound within e-cigarettes usage has been reported. The aim of this study was to develop a new analytical method for the direct analysis of carbonyl compounds in vaporized liquids. Two different types of e-cigarettes and

Questions

  1. How can highly volatile standards be prepared?

    1 answer
    1. Working with highly volatile standards in order to maintain their integrity can be challenging. Initially, it is crucial to ensure that all necessary equipment is prepared and ready for use before starting to prepare stock or working solutions from purchased material.

      1. Rinse and thoroughly dry the volumetric flasks and closures to be used for each standard with the solvent to be used for dilution. Once completely dry, cap the flasks to prevent contamination from other chemical molecules in the air.

      2. If the original standard is stored in the freezer or refrigerator, keep them there until ready to use, such as while gathering all items to be used ready for use.

      3. About 5-10 minutes before preparing the standards, place the rinsed and capped flasks in the refrigerator. Bring out one flask at a time when ready to prepare a dilution.

      4. Keep the stock product/purchased standard on ice in a beaker while out on the countertop for use.

      5. Remove the cap on the volumetric flask and add the diluent/solvent (1/2 way), then cap.

      6. Always invert the stock/purchased standard several times to ensure it is a homogenous mixture, place it back on ice, open and take out the required quantity quickly and accurately, place it in the receiving vessel with the solvent, cap it, and then cap the original/purchase standard. Place it back in storage as soon as possible.

      7. QS to volume with the solvent and invert the solution several times.

      8. Repeat this process for each standard, and then make serial dilutions as needed, ensuring that each vessel (volumetric flask) is tightly capped to prevent the loss of volatile compounds.

      Note: If using vials for storage, ensure that the cap is tight and that the cap liner is compatible with the dilution solvent.

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