Acetaldehyde

  • Identifiers

    CAS number
    75-07-0

    Molecular formula
    C2H4O

    SMILES
    CC=O
    O

    Retention indicies (RI)

    • DB5: 451.5
    • Carbowax: 697.5

  • Odor profile

    fruity 80.25%
    ethereal 79.65%
    pungent 71.66%
    alcoholic 59.36%
    nutty 56.42%
    sharp 52.79%
    fresh 47.14%
    rummy 45.02%
    winey 44.43%
    fermented 42.91%

    Scent© AI

  • Properties

    XLogP3-AA
    -0.3 Well soluble in ETH, DPG, PG

    Molecular weight
    44.05 g/mol

    Melting points

    • -190.3 °F (NTP, 1992)
    • -123.4 °C
    • -123 °C
    • -190 °F

    Boiling points

    • 70 °F at 760 mmHg (NTP, 1992)
    • 20.8 °C
    • 20.2 °C
    • 69 °F

    Flash points

    • -40 °F (NTP, 1992)
    • -40 °C (-40 °F) - closed cup
    • -38.89 °C (Closed cup); -40 °C (Open cup)
    • -38 °C c.c.
    • -36 °F

    Solubilities

    • 0.1 to 1.0 mg/mL at 66 °F (NTP, 1992)
    • Miscible with water /1X10+6 mg/L at 25 °C/
    • Miscible with ethanol, ether, benzene; slightly soluble in chloroform
    • Acetaldehyde is miscible in all proportions with water and most common organic solvents, eg, acetone, benzene, ethyl alcohol, ethyl ether, gasoline, paraldehyde, toluene, xylenes, turpentine, and acetic acid.
    • 1000.0 mg/mL
    • Solubility in water: miscible
    • miscible with water, alcohol, organic solvents
    • Miscible

  • Synonyms

    • acetaldehyde
    • ethanal
    • 75-07-0
    • acetic aldehyde
    • ethyl aldehyde
    • Acetaldehyd
    • Acetylaldehyde
    • aldehyde
    • Aldeide acetica
    • Octowy aldehyd
NaN -Infinity

Botanical

Name CAS Botanical Proportion
Aristolochia asclepiadifolia root Aristolochia asclepiadifolia, fam. Aristolochiaceae 0.8%
Orange, bitter (Spain) 2 72968-50-4 Citrus aurantium L., ssp. amara Engl., fam. Rutaceae 0.1%
Truffle, black (Perigord) Tuber melanosporum, fam. Ascomycetae 4.0%
Tagetes 2 8016-84-0 Tagetes minuta L. (Marigold), fam. Asteraceae (Compositae) 0.02%
Rose (Bulgaria) 2 8007-01-0 Rosa damascena Mill., fam. Rosaceae 0.04%
Thyme 5 8007-46-3 Thymus vulgaris L., fam. Lamiaceae (Labiatae) 0.01%
Celery leaf/stem (Libya) 8015-90-5 Apium graveolens L., fam. Apiaceae (Umbelliferae) 1.2%
Fagraea berteriana flower Fagraea berteriana A. Gray ex Benth., fam. Potaliaceae 0.6%
Carob bean extract 1 9000-40-2 Ceratonia siliqua L., fam. Leguminoseae 0.01%
Cordia nitida fruit Cordia nitida Vahl., fam. Borraginaceae 5.4%
Rocket leaf 2 headspace Eruca sativa L., fam. Brassicaceae 0.1%
Geneps fruit (Cuba) Melicocca bijuga L., fam. Sapindaceae 0.01%
Baga fruit Annona glabra L., fam. Annonaceae 0.01%
Soursop, wild fruit Annona montana Macf., fam. Annonaceae 0.01%
Calamintha nepeta (France) Calamintha nepeta (L.) Savi ssp. nepeta, fam. Lamiaceae (Labiatae) 0.01%
Asafoetida (Pakistan) 2 9000-04-8 Ferula assafoetida L., fam. Apiaceae (Umbelliferae) 0.1%
Lavender (Ukraine) 8000-28-0 Lavandula angustifolia Mill., (L. officinalis Chaix), fam. Lamiaceae 0.01%
Lavender (Australia) 8000-28-0 Lavandula angustifolia Mill. (L. officinalis Chaix), fam. Lamiaceae 0.01%
Lavender (Moldova) 8000-28-0 Lavandula angustifolia Mill., (L. officinalis Chaix), fam. Lamiaceae 0.01%
Cistus 8016-26-0 Cistus ladaniferus L. (C. ladanifer L.), fam. Cistaceae 1.24%