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    4'-Hydroxyacetophenone

    4'-Hydroxyacetophenone
    4'-Hydroxyacetophenone structure
    CAS No.
    99-93-4
    Chemical Name:
    4'-Hydroxyacetophenone
    Synonyms
    POB;Piceol;LGB-HAP;NSC 3698;usafkf-15;USAF kf-15;ACETYLPHENOL;4-ACETOPHENOL;P-ACETOPHENOL;4-ACETYLPHENOL
    CBNumber:
    CB7198612
    Molecular Formula:
    C8H8O2
    Formula Weight:
    136.15
    MOL File:
    99-93-4.mol

    4'-Hydroxyacetophenone Properties

    Melting point:
    132-135 °C(lit.)
    Boiling point:
    147-148 °C3 mm Hg(lit.)
    Density 
    1.109
    FEMA 
    4330 | 4-HYDROXYACETOPHENONE
    refractive index 
    1.5577 (estimate)
    Flash point:
    166 °C
    storage temp. 
    Store below +30°C.
    solubility 
    methanol: 0.1 g/mL, clear
    pka
    8.05(at 25℃)
    form 
    Crystalline Powder
    color 
    Almost white to beige
    Specific Gravity
    1.109
    Water Solubility 
    10 g/L (22 ºC)
    JECFA Number
    2040
    BRN 
    774355
    InChIKey
    TXFPEBPIARQUIG-UHFFFAOYSA-N
    CAS DataBase Reference
    99-93-4(CAS DataBase Reference)
    Substances Added to Food (formerly EAFUS)
    4-HYDROXYACETOPHENONE
    EWG's Food Scores
    1
    NIST Chemistry Reference
    Acetophenone, 4'-hydroxy-(99-93-4)
    EPA Substance Registry System
    4-Hydroxyacetophenone (99-93-4)
    SAFETY
    • Risk and Safety Statements
    Symbol(GHS) 
    GHS07,GHS06
    Signal word  Warning
    Hazard statements  H302-H315-H301-H335-H319-H412
    Precautionary statements  P261-P280a-P301+P310a-P405-P501a-P305+P351+P338-P264-P270-P280-P301+P312+P330-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P501
    Hazard Codes  Xn,Xi
    Risk Statements  36/37/38-22
    Safety Statements  26-36/37-37/39-24/25-22-36
    WGK Germany  3
    RTECS  PC4959775
    Hazard Note  Irritant
    TSCA  Yes
    HS Code  29145000
    NFPA 704
    1
    2 0

    4'-Hydroxyacetophenone price More Price(15)

    Manufacturer Product number Product description CAS number Packaging Price Updated Buy
    Sigma-Aldrich 278564 4′-Hydroxyacetophenone 99% 99-93-4 5g $38.1 2021-03-22 Buy
    Sigma-Aldrich 8.04311 4′-Hydroxyacetophenone for synthesis 99-93-4 100 g $41.16 2021-03-22 Buy
    Sigma-Aldrich 278564 4′-Hydroxyacetophenone 99% 99-93-4 100g $70.9 2021-03-22 Buy
    Sigma-Aldrich 8.04311 4′-Hydroxyacetophenone for synthesis 99-93-4 250 g $82.05 2021-03-22 Buy
    TCI Chemical H0193 4'-Hydroxyacetophenone >98.0%(HPLC)(T) 99-93-4 25g $25 2021-03-22 Buy

    4'-Hydroxyacetophenone Chemical Properties,Uses,Production

    Chemical Properties

    almost white to beige crystalline powder

    Chemical Properties

    White to beige powder; sweet, hawthorn, balsam, mimosa aroma

    Occurrence

    Reported found in cloudberry, coffee, cranberry, mango, sherry, and wort.

    Preparation

    Preparation by Fries rearrangement of phenyl acetate with Lewis acids
    aluminium chloride
    in nitrobenzene at 20–25° or at 50–60°
    in chlorobenzene between 45° and 65°, sealed tube and subjected to high power microwave irradiation for 2 min only (36%)
    in nitroethane at 60° (44%)
    in carbon disulfide at 45° (40%)
    in petroleum ether at 50° (20%)
    but between 130° and 175° (40–60%)
    aluminium chloride–sodium chloride mixture at 240–250° (10%)
    boron trifluoride at 90° (56%)
    scandium tris(trifluoromethanesulfonate), in nitromethane, at 50° (39%)
    titanium tetrachloride at 90–100° (34%)
    ferric chloride at 65° (25%)
    zinc chloride at 125° (8%)
    hydrofluoric acid, between 20° and 100° (94%)
    polyphosphoric acid, between 20° and 100° (69%) (50–53%)(44%)
    Nafion-XR 500, sulfonic acid type at 100°
    ZSM-5, in sulfolane, at 180° (28%)
    H-ZSM-5 at 400° or at 210° (6%)
    H-Nu-2 at 170° (15%)
    HY (Si/Al = 3) or fluorided alumina (Al2O3-F; 3 % wt. F), at 400°.

    Definition

    ChEBI: A monohydroxyacetophenone carrying a hydroxy substituent at position 4'.

    Aroma threshold values

    Floral type, medium strength odor; recommend smelling in a 10.00% solution or less.

    Synthesis Reference(s)

    Tetrahedron Letters, 32, p. 5829, 1991 DOI: 10.1016/S0040-4039(00)93567-6

    Purification Methods

    Crystallise it from diethyl ether, aqueous EtOH or *benzene/pet ether. [Beilstein 8 H 87, 8 IV 339.]

    4'-Hydroxyacetophenone Preparation Products And Raw materials

    Raw materials

    Preparation Products


    4'-Hydroxyacetophenone Suppliers

    Global( 624)Suppliers
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    Chengdu Yuanda Chemical Co., Ltd
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    View Lastest Price from 4'-Hydroxyacetophenone manufacturers

    Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
    2021-10-14 p-Hydroxyacetophenone
    99-93-4
    US $20.00 / KG 1KG 99% 20 tons Hebei Dongdu Import and Export Co. LTD
    2021-09-26 zinc,2,2-dimethylpropanoate
    99-93-4
    US $1.00 / Kg 1KG 99.99% 1000 Metric Ton/Day Handan Tongyi New Material Technology Co., Ltd
    2021-09-23 4'-Hydroxyacetophenone
    99-93-4
    US $45.00 / KG 1KG 98% 20t/month Hebei Yime New Material Technology Co., Ltd.

    4'-Hydroxyacetophenone Spectrum


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