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00070

Sigma-Aldrich

Acetaldehyde

puriss. p.a., anhydrous, ≥99.5% (GC)

Synonym(s):

Ethanal

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About This Item

Linear Formula:
CH3CHO
CAS Number:
75-07-0
Molecular Weight:
44.05
Beilstein/REAXYS Number:
505984
EC Number:
200-836-8
MDL number:
MFCD00006991
UNSPSC Code:
12352100
eCl@ss:
39021102
PubChem Substance ID:
329746997
NACRES:
NA.21
Pricing and availability is not currently available.

biological source

synthetic

Quality Level

100

grade

anhydrous
puriss. p.a.

vapor density

1.52 (vs air)

vapor pressure

14.63 psi ( 20 °C)

assay

≥99.5% (GC)

form

liquid

autoignition temp.

365 °F

quality

anhydrous

expl. lim.

60 %

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This Item
00071402788506788
Acetaldehyde puriss. p.a., anhydrous, ≥99.5% (GC)

00070

Acetaldehyde

Acetaldehyde ReagentPlus®, ≥99.0% (GC)

00071

Acetaldehyde

Acetaldehyde ACS reagent, ≥99.5%

402788

Acetaldehyde

Acetaldehyde PESTANAL®, analytical standard

506788

Acetaldehyde

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

100

bp

21 °C (lit.)

bp

21 °C (lit.)

bp

21 °C (lit.)

bp

21 °C (lit.)

refractive index

n20/D 1.332 (lit.)

refractive index

n20/D 1.332 (lit.)

refractive index

n20/D 1.332 (lit.)

refractive index

n20/D 1.332 (lit.)

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

form

liquid

form

liquid

form

liquid

form

-

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.[1]
Mechanism of the thermal decomposition of acetaldehyde has been reported.[2] It is a product of ethanol metabolism in the liver, binds covalently to various proteins, thereby alters the liver function and structure.[3] The aldol condensation of acetaldehyde and heptanal in the presence of hydrotalcite-type catalysts has been described.[4]

Application

Acetaldehyde may be used for the enzymatic synthesis of fatty acids.[5]
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.[6] 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).[7]

Caution

forms easily paraldehyde

signalword

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_germany

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
    SHBQ1675
    SHBN8614
    SHBN6007
    SHBN0640
    SHBN3787

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    THE ENZYMATIC SYNTHESIS OF FATTY ACIDS BY ALDOL CONDENSATION.
    R O Brady
    Proceedings of the National Academy of Sciences of the United States of America, 44(10), 993-998 (1958-10-15)
    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)
    The aldol condensation of acetaldehyde and heptanal on hydrotalcite-type catalysts.
    Tichit D, et al.
    J. Catal., 219(1), 167-175 (2003)
    Acetaldehyde plasma polymer-coated PET fibers for endothelial cell patterning: Chemical, topographical, and biological analysis.
    Hadjizadeh, Afra.
    Journal of Biomedical Materials Research. Part B, Applied Biomaterials, 94.1, 11-21 (2010)
    View All Related Papers

    Protocols

    EPA Method TO-11/IP-6A and ASTM® D5197: HPLC Analysis of Aldehydes and Ketones on SUPELCOSI™ LC-18 after Collection/Desorption using LpDNPH

    -Tolualdehyde; Valeraldehyde; Isovaleraldehyde

    GC Analysis of Fermentation Compounds on a Packed Column (6.6% Carbowax® 20M on 80/120 Carbopack™ B AW)

    Separation of Acetone; Acetic acid; Propionic acid; Ethyl butyrate; Ethanol; Isoamyl acetate; Isobutyric acid; 3-Methyl-2-butanol; Methyl acetate; 1-Propanol; Acetal, ≥98%, FG; 2-Methyl-1-pentanol; Butyl acetate; Ethyl propionate; 3-Pentanol; 2-Pentanol, 98%; Ethyl isobutyrate; Isobutyl acetate; Acetaldehyde; Furfural; Butyric acid; Methanol; Ethyl acetate

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