2,4-Dodecadienal, (2E,4E)-

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    21662-16-8

    Molecular formula
    C12H20O

    SMILES
    CCCCCCC/C=C/C=C/C=O
    O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    fatty 90.71%
    citrus 71.66%
    waxy 68.83%
    green 61.01%
    fruity 59.53%
    aldehydic 58.53%
    oily 51.66%
    orange 51.01%
    melon 48.43%
    cucumber 48.3%

    Scent© AI

  • Properties

    XLogP3-AA
    4.3 Well soluble in BB, DEP, IAA

    Molecular weight
    180.29 g/mol

    Vapor pressure est.

    • 0.0018 hPa @ 20°C
    • 0.0032 hPa @ 25°C

    Evaporation rate
    Very slow

    Boiling point

    • 130.00 °C. @ 6.00 mm Hg

    Solubility expt.

    • Slightly soluble in water; miscible in oils
    • soluble (in ethanol)

  • Synonyms

    • 21662-16-8
    • (E,E)-2,4-dodecadienal
    • (2E,4E)-Dodeca-2,4-dienal
    • Trans,trans-2,4-dodecadienal
    • (2E,4E)-2,4-Dodecadienal
    • 2,4-Dodecadienal
    • (E,E)-2,4-Dodecadien-1-al
    • 2,4-Dodecadienal, (E,E)-
    • 2,4-Dodecadienal, (2E,4E)-
    • (trans,trans)-2,4-Dodecadienal
NaN -Infinity

IFRA Standard 51

Recommendation
Prohibition
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 0 % Category 7A
Rinse-off products applied to the hair with some hand contact
 0 %
Category 2
Products applied to the axillae
 0 % Category 7B
Leave-on products applied to the hair with some hand contact
 0 %
Category 3
Products applied to the face/body using fingertips
 0 % Category 8
Products with significant anogenital exposure
 0 %
Category 4
Products related to fine fragrance
 0 % Category 9
Products with body and hand exposure, primarily rinse off
 0 %
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 0 % Category 10A
Household care products with mostly hand contact
 0 %
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 0 % Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 0 %
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 0 % Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 0 %
Category 5D
Baby Creams, baby Oils and baby talc
 0 % Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 0 %
Category 6
Products with oral and lip exposure
 0 % Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 0 %

Prohibition
2,4-Dienals should not be used as a fragrance ingredient.

Botanical

Name CAS Botanical Proportion
Angelica root (Finland) 4 8015-64-3 Angelica archangelica L. var. archangelica, fam. Apiaceae (Umbelliferae) 0.5%
Angelica root (Finland) 3 8015-64-3 Angelica archangelica L. var. sativa, fam. Apiaceae (Umbelliferae) 0.3%
Fitweed leaf Eryngium foetidum L., fam. Apiaceae (Umbelliferae) 0.01%
Porophyllum ruderale (Brazil) 1a leaf Porophyllum ruderale Cass, fam. Asteraceae (Compositae) 15.5%