Tri-p-cresyl phosphate

Overview IFRA Request a quote

  • Identifiers

    CAS number
    78-32-0

    Molecular formula
    C21H21O4P

    SMILES
    CC1=CC=C(C=C1)OP(=O)(OC2=CC=C(C=C2)C)OC3=CC=C(C=C3)C
    OPOOO

    Safety labels

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    floral 74.78%
    green 59.06%
    rose 44.42%
    balsamic 39.55%
    phenolic 33.89%
    metallic 33.84%
    geranium 33.27%
    animal 31.27%
    fruity 30.87%
    herbal 30.08%

    Scent© AI

  • Properties

    XLogP3-AA
    5.1 Well soluble in BB, IPM, DOA

    Molecular weight
    368.4 g/mol

    Vapor pressure est.

    • 0 hPa @ 20°C
    • 0 hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • 171 to 172 °F (NTP, 1992)
    • 77.5 °C
    • MP: SUPERCOOLS; ACIDITY: 0.02 CALCULATED AS % PHOSPHORIC ACID; VISC: 60 CENTISTOKE @ 25 °C & 4.0 CENTISTOKE @ 100 °C /ISOMERIC MIXT/

    Boiling point

    • 435 °F at 3.5 mmHg (NTP, 1992)
    • BP: 224 °C at 35 mm Hg

    Flash point expt.

    • 410 °F (CLOSED CUP)

    Solubility expt.

    • Insoluble (NTP, 1992)
    • Water solubility: 0.1 mg/L at 25 °C /Isomeric mixture/
    • In water, 0.074 mg/L at 24 °C /Practical grade/
    • Soluble in ethanol, ethyl ether, benzene, chloroform.

  • Synonyms

    • TRICRESYL PHOSPHATE
    • 78-32-0
    • Tri-p-tolyl phosphate
    • TRI-P-CRESYL PHOSPHATE
    • Tris(4-methylphenyl) phosphate
    • Phosphoric acid, tris(4-methylphenyl) ester
    • Phosphoric acid, tri-p-tolyl ester
    • tri-p-tolylphosphate
    • Phosphoric acid, tri(4-tolyl)ester
    • tris-p-tolyl phosphate
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