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00071

Acetaldehyde

≥99.0% (GC), liquid, ReagentPlus®

Synonym(s):

Ethanal

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5 mL

Available to ship TODAYfromMILWAUKEE

$38.50
100 mL

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$76.50
500 mL

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$180.00
1 L

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$205.00

About This Item

Linear Formula:
CH3CHO
CAS Number:
75-07-0
Molecular Weight:
44.05
NACRES:
NA.21
PubChem Substance ID:
329746998
eCl@ss:
39021102
UNSPSC Code:
12352114
EC Number:
200-836-8
MDL number:
MFCD00006991
Beilstein/REAXYS Number:
505984
Assay:
≥99.0% (GC)
Form:
liquid

$38.50

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Product Name

Acetaldehyde, ReagentPlus®, ≥99.0% (GC)

biological source

synthetic

Quality Level

200

vapor density

1.52 (vs air)

vapor pressure

14.63 psi ( 20 °C)

product line

ReagentPlus®

assay

≥99.0% (GC)

form

liquid

autoignition temp.

365 °F

expl. lim.

60 %

refractive index

n20/D 1.332 (lit.)

bp

21 °C (lit.)

mp

−125 °C (lit.)

density

0.785 g/mL at 25 °C (lit.)

functional group

aldehyde

storage temp.

2-8°C

SMILES string

CC=O

InChI

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

InChI key

IKHGUXGNUITLKF-UHFFFAOYSA-N

General description

Acetaldehyde is an organic colorless flammable liquid. It can be produced by hydration of acetylene and by catalytic oxidation of ethyl alcohol. It is mainly used in manufacturing acetic acid.
Mechanism of the thermal decomposition of acetaldehyde has been reported.[1] It is a product of ethanol metabolism in the liver, binds covalently to various proteins, thereby alters the liver function and structure.[2] The aldol condensation of acetaldehyde and heptanal in the presence of hydrotalcite-type catalysts has been described.

Application

It was used in the plasma polymerization for deposition of reactive aldehyde groups onto substrate, in a study to produce fibrous biomaterials with cell adhesive and also repulsive capability in biomedical applications. It was also used as calibration standard during determination of acetone, acetaldehyde, ethanol, and methanol in different human matrices, such as whole blood, vitreous humour, and urine using gas chromatography with flame ionization detection method (GC–FID).
Acetaldehyde may be used for the enzymatic synthesis of fatty acids.[3]

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

forms easily paraldehyde

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Acetaldehyde

assay

≥99.0% (GC)

assay

≥99.5% (GC)

assay

≥99% (GC)

assay

-

Quality Level

200

Quality Level

200

Quality Level

300, 400

Quality Level

300

form

liquid

form

liquid

form

liquid

form

liquid

mp

−125 °C (lit.)

mp

−125 °C (lit.)

mp

−125 °C (lit.)

mp

−125 °C (lit.)

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

refractive index

n20/D 1.332 (lit.)

refractive index

n20/D 1.332

refractive index

n20/D 1.332 (lit.)

refractive index

n20/D 1.332 (lit.)

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Danger

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

-38.0 °F - closed cup

flash_point_c

-38.89 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB3709
SHBT5556
BCCP3429
SHBS6164
SHBS3951

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Articles

Aldol Condensation Reaction

The aldol condensation reaction is an organic reaction introduced by Charles Wurtz, who first prepared the β-hydroxy aldehyde from acetaldehdye in 1872.

Bruce D. Craig, David S. Anderson
Handbook of Corrosion Data, 87-87 (1994)
C S Lieber
Biochemical Society transactions, 16(3), 241-247 (1988-06-01)
Acetaldehyde, the toxic product of ethanol metabolism in the liver, covalently binds to a variety of proteins, thereby altering liver function and structure. Through its binding to tubulin, acetaldehyde decreases the polymerization of microtubules thereby impairing protein secretion and favouring
GC determination of acetone, acetaldehyde, ethanol, and methanol in biological matrices and cell culture.
Pontes, Helena, et al.
Journal of Chromatographic Science, 47.4, 272-278 (2009)
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Global Trade Item Number

SKUGTIN
VT000716-10EA04061842028894
211478-25G04061838771810
00071-500ML04061837367717
00071-5ML04061838601926
00071-100ML04061837367687
00071-500ML-IN04061837367724
00071-1L04061837367694

Questions

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  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

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  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

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