Tetrahydro-4-methyl-2-(2-methylprop-1-enyl)pyran

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    16409-43-1

    Molecular formula
    C10H18O

    SMILES
    CC1CCOC(C1)C=C(C)C
    O

    Safety labels

    Irritant
    Irritant

    Health Hazard
    Health

    Retention indicies (RI)

    • DB5: 1115.0
    • Carbowax: 1353.0

  • Odor profile

    green 92.24%
    herbal 85.5%
    floral 83.05%
    fresh 60.81%
    geranium 55.96%
    mint 55.58%
    rose 55.06%
    spicy 52.8%
    leafy 47.58%
    citrus 47.36%

    Scent© AI

  • Properties

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

    Molecular weight
    154.25 g/mol

    Vapor pressure est.

    • 0.3594 hPa @ 20°C
    • 0.5333 hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point

    • 86.00 °C. @ 20.00 mm Hg

    Solubility expt.

    • 764 mg/L @ 20 °C (exp)

  • Synonyms

    • 16409-43-1
    • Rose oxide
    • 4-Methyl-2-(2-methylprop-1-en-1-yl)tetrahydro-2H-pyran
    • Rosenoxide
    • Rosoxide
    • 4-methyl-2-(2-methylprop-1-enyl)oxane
    • 2H-Pyran, tetrahydro-4-methyl-2-(2-methyl-1-propen-1-yl)-
    • 2H-Pyran, tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-
    • 4-methyl-2-(2-methylpropenyl)tetrahydro-2h-pyran
    • Fema 3236
NaN -Infinity

IFRA Standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction

Botanical

Name CAS Botanical Proportion
Swangi (Citrus hystrix) leaf (Thailand) 2b Citrus hystrix DC (Swangi), fam. Rutaceae 0.01%
Lemon (India) 1 84929-31-7 Citrus limon (L.) Burm. f., cultivar "Plant Lemon-1", fam. Rutaceae 0.01%
Lemon verbena (Morocco) 1 Aloysia triphylla (L'Herit.) Britton (Lippia citriodora (Lam.) O. Kuntze) 0.05%
Litsea pungens (China) Litsea pungens Hemsl., fam. Lauraceae 0.01%
Thymus funkii Thymus funkii Cosson, fam. Lamiaceae (Labiatae) 0.05%
Rosa odorata (China) Rosa odorata Sweet, fam. Rosaceae 0.1%
Eucalyptus citriodora (Morocco) 8008-48-4 Eucalyptus citriodora Hook. f., fam. Myrtaceae 1.0%
Thymus serpyllum (France) Thymus serpyllum L., fam. Lamiaceae (Labiatae) 0.12%
Geranium (India) 9 8000-46-2 Pelargonium graveolens L'Herit. ex Aiton, fam. Geraniaceae 1.0%
Rose (Bulgaria) 4a 8007-01-0 Rosa damascena Mill., fam. Rosaceae 0.1%
Rose (Bulgaria) 4c 8007-01-0 Rosa damascena Mill., fam. Rosaceae 0.01%
Rose (Turkey) 7 8007-01-0 Rosa damascena Mill., fam. Rosaceae 0.7%
Cassie absolute 1a extract 8023-82-3 Acacia farnesiana (L.) Willd., fam. Mimosaceae (Leguminosae) 0.5%
Laggera gracilis (Cameroon) Laggera gracilis (O. Hoffm. & Muschl.) C.D. Adams, fam. Asteraceae 0.2%