Methyl Acetate

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  • Identifiers

    CAS number
    79-20-9

    Molecular formula
    C3H6O2

    SMILES
    CC(=O)OC

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fruity 91.92%
    Ethereal 91.29%
    Sweet 79.18%
    Rummy 72.36%
    Winey 58.51%
    Solvent 53.47%
    Banana 46.25%
    Alcoholic 46.2%
    Pungent 45.54%
    Sharp 45.51%

    Scent© AI

    Odor threshold>

    • Odor Threshold Low: 0.17 [mmHg]. Odor Threshold High: 1733.0 [mmHg]. Detection odor threshold from AIHA (mean = 180 ppm)
    • WATER: 3.0 MG/L; AIR: 4.6 UL/L; ODOR SAFETY CLASS B; B= 50-90% OF DISTRACTED PERSONS PERCEIVE WARNING OF TLV
    • 610 mg/cu m (odor low), 915 mg/cu m (odor high).

  • Properties

    XLogP3-AA
    0.2

    Molecular weight
    74.08 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Melting point expt.

    • -144 °F (NTP, 1992)
    • -98.2 °C
    • -98.7 °C
    • -98 °C
    • -145 °F

    Boiling point

    • 134.4 °F at 760 mmHg (NTP, 1992)
    • 56.7 °C
    • 57 °C
    • 135 °F

    Flash point est.
    -11.3 ˚C

    Flash point expt.

    • 14 °F (NTP, 1992)
    • -10 °C
    • 14 °F (-10 °C) (closed cup)
    • 22 °F (OPEN CUP)
    • -13 °C (9 °F) (Closed cup)
    • 14 °F (-10 °C) (Closed cup)
    • -13 °C c.c.
    • 14 °F

    Solubility expt.

    • greater than or equal to 100 mg/mL at 70 °F (NTP, 1992)
    • In water, 2.43X10+5 mg/L at 20 °C
    • Miscible with alcohol, ether
    • Very soluble in ethyl ether, ethanol
    • 243 mg/mL at 20 °C
    • Solubility in water, g/100ml at 20 °C: 24.4 (poor)
    • miscible with alcohol, ether; soluble in water
    • 1 ml in 10ml 50% alcohol (in ethanol)
    • 25%

  • Synonyms

    • METHYL ACETATE
    • 79-20-9
    • Methyl ethanoate
    • Acetic acid, methyl ester
    • Devoton
    • Tereton
    • Acetic acid methyl ester
    • Methylacetat
    • Methyl acetic ester
    • Acetate de methyle
    • Methylacetaat
    • Octan metylu
    • Metile (acetato di)
    • Methyle (acetate de)
    • Methylester kiseliny octove
    • HSDB 95
    • Ethyl ester of monoacetic acid
    • CH3COOCH3
    • FEMA No. 2676
    • FEMA Number 2676
    • MeOAc
    • Methyl acetate (natural)
    • Methyl ester of acetic acid
    • Methylacetat [German]
    • CCRIS 5846
    • NSC 405071
    • AcOMe
    • EINECS 201-185-2
    • UN1231
    • UNII-W684QT396F
    • ACETIC ACID,METHYL ESTER
    • DTXSID4021767
    • METHYL-ACETATE
    • CHEBI:77700
    • W684QT396F
    • CH3CO2CH3
    • NSC-405071
    • METHYL ACETATE [MI]
    • METHYL ACETATE [FCC]
    • METHYL ACETATE [FHFI]
    • METHYL ACETATE [HSDB]
    • DTXCID101767
    • METHYL ACETATE [USP-RS]
    • EC 201-185-2
    • Methylacetat (german)
    • UN 1231
    • NCGC00090940-01
    • Acetic acid-methyl ester
    • METHYL ACETATE (USP-RS)
    • Methylacetaat [Dutch]
    • Octan metylu [Polish]
    • CAS-79-20-9
    • Methyl Acetate; Acetic acid methyl ester
    • Acetate de methyle [French]
    • Methyle (acetate de) [French]
    • Metile (acetato di) [Italian]
    • Methylester kiseliny octove [Czech]
    • Metile
    • METHYL ACETATE, 97%
    • 1-Methyl acetate
    • MFCD00008711
    • CH3COOMe
    • methyl ester acetic acid
    • Methyl acetate [UN1231] [Flammable liquid]
    • WLN: 1VO1
    • CHEMBL14079
    • METHYL ACETATE [INCI]
    • Methyl acetate (ACGIH:OSHA)
    • Methyl acetate, >=98%, FG
    • FEMA 2676
    • Methyl acetate, analytical standard
    • HY-Y0874
    • WAA30054
    • Methyl acetate, anhydrous, 99.5%
    • Methyl acetate, natural, 98%, FG
    • Tox21_113243
    • Tox21_200057
    • NSC405071
    • STL281977
    • AKOS000120042
    • Methyl acetate, ReagentPlus(R), 99%
    • Methyl acetate, for HPLC, >=99.8%
    • NCGC00090940-02
    • NCGC00257611-01
    • DB-255268
    • NS00003464
    • S0300
    • EN300-15476
    • Methyl acetate, SAJ first grade, >=99.0%
    • C17530
    • Methyl acetate [UN1231] [Flammable liquid]
    • Methyl acetate, JIS special grade, >=99.5%
    • A839618
    • Q414189
    • Acetic acid-methyl ester 1000 microg/mL in Methanol
    • Methyl acetate, United States Pharmacopeia (USP) Reference Standard
    • 201-185-2

  • Applications

    Methyl acetate (CAS 79-20-9) is a fast-evaporating, fruity-scented ester widely used as a solvent in automotive coatings, flexo-offset inks, wood adhesives, polyurethane resins, cellulose acetate and nitro varnishes, plate and electronics cleaners, low-toxicity nail-polish removers, agrochemical carriers, fragrance extraction, polyurethane-foam blowing, and as an intermediate for pharmaceuticals, flavors, fragrances and acetic anhydride; it also finds roles in photographic film and celluloid cement, and is favored for its biodegradability, rapid flash-off, higher flash point than acetone and capability to replace traditional VOC solvents.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1368.74
    methanol 2407.39
    isopropanol 1030.45
    water 864.48
    ethyl acetate 320.66
    n-propanol 778.38
    acetone 769.76
    n-butanol 586.94
    acetonitrile 1019.76
    DMF 1771.4
    toluene 114.04
    isobutanol 571.53
    1,4-dioxane 572.83
    methyl acetate 549.51
    THF 589.34
    2-butanone 494.07
    n-pentanol 278.02
    sec-butanol 692.59
    n-hexane 31.07
    ethylene glycol 507.92
    NMP 1106.88
    cyclohexane 26.67
    DMSO 984.6
    n-butyl acetate 37.93
    n-octanol 71.05
    chloroform 749.41
    n-propyl acetate 81.45
    acetic acid 1246.22
    dichloromethane 843.18
    cyclohexanone 332.27
    propylene glycol 514.46
    isopropyl acetate 134.42
    DMAc 1558.26
    2-ethoxyethanol 565.87
    isopentanol 373.92
    n-heptane 10.12
    ethyl formate 422.53
    1,2-dichloroethane 374.1
    n-hexanol 94.54
    2-methoxyethanol 1398.13
    isobutyl acetate 38.22
    tetrachloromethane 177.66
    n-pentyl acetate 53.68
    transcutol 404.06
    n-heptanol 61.77
    ethylbenzene 47.98
    MIBK 106.12
    2-propoxyethanol 202.07
    tert-butanol 868.95
    MTBE 373.64
    2-butoxyethanol 137.58
    propionic acid 640.86
    o-xylene 96.94
    formic acid 1379.23
    diethyl ether 314.41
    m-xylene 63.6
    p-xylene 75.01
    chlorobenzene 145.59
    dimethyl carbonate 151.63
    n-octane 6.0
    formamide 2075.03
    cyclopentanone 467.21
    2-pentanone 256.83
    anisole 159.81
    cyclopentyl methyl ether 216.0
    gamma-butyrolactone 572.25
    1-methoxy-2-propanol 791.15
    pyridine 519.26
    3-pentanone 195.81
    furfural 680.83
    n-dodecane 4.83
    diethylene glycol 231.01
    diisopropyl ether 47.15
    tert-amyl alcohol 689.66
    acetylacetone 224.65
    n-hexadecane 5.1
    acetophenone 133.0
    methyl propionate 318.91
    isopentyl acetate 36.75
    trichloroethylene 644.87
    n-nonanol 59.21
    cyclohexanol 330.76
    benzyl alcohol 215.65
    2-ethylhexanol 41.34
    isooctanol 47.85
    dipropyl ether 42.18
    1,2-dichlorobenzene 123.48
    ethyl lactate 74.25
    propylene carbonate 204.99
    n-methylformamide 1446.26
    2-pentanol 313.71
    n-pentane 44.36
    1-propoxy-2-propanol 110.53
    1-methoxy-2-propyl acetate 62.85
    2-(2-methoxypropoxy) propanol 111.99
    mesitylene 30.75
    ε-caprolactone 281.0
    p-cymene 19.05
    epichlorohydrin 609.74
    1,1,1-trichloroethane 343.33
    2-aminoethanol 886.54
    morpholine-4-carbaldehyde 864.75
    sulfolane 489.35
    2,2,4-trimethylpentane 20.97
    2-methyltetrahydrofuran 464.5
    n-hexyl acetate 75.31
    isooctane 7.39
    2-(2-butoxyethoxy)ethanol 141.31
    sec-butyl acetate 53.36
    tert-butyl acetate 106.99
    decalin 11.94
    glycerin 633.02
    diglyme 283.26
    acrylic acid 589.08
    isopropyl myristate 24.27
    n-butyric acid 497.06
    acetyl acetate 141.5
    di(2-ethylhexyl) phthalate 35.62
    ethyl propionate 97.05
    nitromethane 1835.15
    1,2-diethoxyethane 83.18
    benzonitrile 189.59
    trioctyl phosphate 20.98
    1-bromopropane 233.25
    gamma-valerolactone 714.96
    n-decanol 38.51
    triethyl phosphate 27.78
    4-methyl-2-pentanol 117.39
    propionitrile 457.67
    vinylene carbonate 234.94
    1,1,2-trichlorotrifluoroethane 551.34
    DMS 74.04
    cumene 33.79
    2-octanol 47.22
    2-hexanone 101.46
    octyl acetate 36.64
    limonene 28.27
    1,2-dimethoxyethane 544.61
    ethyl orthosilicate 28.71
    tributyl phosphate 25.14
    diacetone alcohol 224.93
    N,N-dimethylaniline 125.63
    acrylonitrile 633.55
    aniline 344.29
    1,3-propanediol 858.7
    bromobenzene 107.32
    dibromomethane 439.44
    1,1,2,2-tetrachloroethane 460.77
    2-methyl-cyclohexyl acetate 34.79
    tetrabutyl urea 39.98
    diisobutyl methanol 25.39
    2-phenylethanol 84.23
    styrene 67.08
    dioctyl adipate 39.52
    dimethyl sulfate 259.45
    ethyl butyrate 40.84
    methyl lactate 228.31
    butyl lactate 53.21
    diethyl carbonate 29.42
    propanediol butyl ether 144.4
    triethyl orthoformate 33.22
    p-tert-butyltoluene 19.56
    methyl 4-tert-butylbenzoate 94.97
    morpholine 885.29
    tert-butylamine 495.34
    n-dodecanol 27.19
    dimethoxymethane 565.62
    ethylene carbonate 169.1
    cyrene 132.18
    2-ethoxyethyl acetate 85.42
    2-ethylhexyl acetate 27.13
    1,2,4-trichlorobenzene 170.18
    4-methylpyridine 531.71
    dibutyl ether 45.98
    2,6-dimethyl-4-heptanol 25.39
    DEF 465.72
    dimethyl isosorbide 121.29
    tetrachloroethylene 370.75
    eugenol 96.72
    triacetin 89.15
    span 80 88.5
    1,4-butanediol 274.91
    1,1-dichloroethane 517.23
    2-methyl-1-pentanol 205.82
    methyl formate 801.08
    2-methyl-1-butanol 429.85
    n-decane 8.91
    butyronitrile 394.7
    3,7-dimethyl-1-octanol 53.98
    1-chlorooctane 31.95
    1-chlorotetradecane 11.84
    n-nonane 8.84
    undecane 6.22
    tert-butylcyclohexane 13.59
    cyclooctane 7.74
    cyclopentanol 445.23
    tetrahydropyran 362.7
    tert-amyl methyl ether 259.91
    2,5,8-trioxanonane 184.93
    1-hexene 86.12
    2-isopropoxyethanol 248.39
    2,2,2-trifluoroethanol 566.57
    methyl butyrate 142.23

    Scent© AI

1 4

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
Geneps fruit (Cuba) Melicocca bijuga L., fam. Sapindaceae 4.7%
Baga fruit Annona glabra L., fam. Annonaceae 0.4%
Soursop, wild fruit Annona montana Macf., fam. Annonaceae 0.6%