• Identifiers

    CAS mumber
    78-93-3

    Molecular formula
    C4H8O

    SMILES
    CCC(=O)C

    Retention indicies (RI)

    • DB5: 592.0
    • Carbowax: 899.8
  • Properties

    XLogP3-AA
    0.3 Well soluble in MMB, TEC, DEP

    Molecular weight
    72.11 g/mol

    Melting points

    • -123.3 °F (NTP, 1992)
    • -86.67 °C
    • -86.6 °C
    • -86 °C
    • -123 °F
    • -123 °F

    Boiling points

    • 175.3 °F at 760 mmHg (NTP, 1992)
    • 79.59 °C
    • 78.60 to 80.00 °C. @ 760.00 mm Hg
    • 80 °C
    • 175 °F
    • 175 °F

    Flash points

    • 26 °F (NTP, 1992)
    • 26 °F
    • 16 °F (-9 °C) (Closed cup)
    • -9 °C (closed cup)
    • -9 °C c.c.
    • 16 °F
    • 16 °F

    Solubilities

    • greater than or equal to 100 mg/mL at 66 °F (NTP, 1992)
    • Constant boiling mixture with water, BP 73.4 °C, contains 88.7% methyl ethyl ketone (MEK); Solubility of water in MEK is 12.5% at 25 °C
    • In water, 2.23X10+5 mg/L at 25 °C
    • In water, 3.13X10+5 mg/L at 10 °C; 2.11X10+5 mg/L at 25 °C; 1.6X10+5 mg/L at 90 °C
    • Soluble in benzene, alcohol, and ether; miscible with oils
    • Miscible with ethanol, ether, acetone, benzene, chloroform
    • 223.0 mg/mL
    • Solubility in water, g/100ml at 20 °C: 29 (good)
    • miscible with alcohol, ether, most fixed oils; 1 ml in 4 ml water
    • 28%

  • Synonyms

    • 2-Butanone
    • METHYL ETHYL KETONE
    • Butan-2-one
    • Butanone
    • 78-93-3
    • Ethyl methyl ketone
    • Methylethyl ketone
    • Meetco
    • Methyl acetone
    • Methylethylketone
    • 3-Butanone
    • Ethylmethylketon
    • ethylmethylketone
    • Aethylmethylketon
    • Butanone 2
    • Acetone, methyl-
    • Ethyl methyl cetone
    • Metiletilchetone
    • Metyloetyloketon
    • Ketone, ethyl methyl
    • MEK
    • ethylmethyl ketone
    • Metyl ethyl ketone
    • methylacetone
    • methyl(ethyl) ketone
    • Metiletilcetona
    • Oxobutane
    • RCRA waste number U159
    • Methylethylketon
    • Caswell No. 569
    • Ethylmethylcetone
    • 2-butanon
    • FEMA No. 2170
    • HSDB 99
    • CCRIS 2051
    • UNII-6PT9KLV9IO
    • 2-BUTANONE-D8
    • 6PT9KLV9IO
    • 2-Oxobutane
    • C2H5COCH3
    • methyl ethylketone
    • AI3-07540 (USDA)
    • EINECS 201-159-0
    • methyl ethyl cetone
    • MFCD00011648
    • EPA Pesticide Chemical Code 044103
    • ethyl(methyl) ketone
    • DTXSID3021516
    • CHEBI:28398
    • AI3-07540
    • 2-Butanone, HPLC Grade
    • DTXCID801516
    • EC 201-159-0
    • Butanone 2 [French]
    • METHYL ETHYL KETONE (II)
    • METHYL ETHYL KETONE [II]
    • Ethylmethylketon [Dutch]
    • METHYL ETHYL KETONE (MART.)
    • METHYL ETHYL KETONE [MART.]
    • Metiletilcetona [Spanish]
    • Metyloetyloketon [Polish]
    • Aethylmethylketon [German]
    • Ethylmethylcetone [French]
    • Metiletilchetone [Italian]
    • 2-Butanone, ACS reagent, >=99.0%
    • methyl-ethyl ketone
    • Ethyl methyl cetone [French]
    • Butanon, Ethylmethylketon, Methylethylketon, MEK
    • UN1193
    • methyl ethyl ketone (mek)
    • RCRA waste no. U159
    • n-butanone
    • 2-butanal
    • ethyl methylketone
    • ethylmathyl ketone
    • methyl-ethylketone
    • methylethyl-ketone
    • butane-2-one
    • 2 -butanone
    • 2- butanone
    • butan-3-one
    • methyl etyl ketone
    • ethyl-methyl ketone
    • methyl-ethyl-ketone
    • Ethyl, methyl ketone
    • Ketone, methyl ethyl
    • Caswell No 569
    • 2-Butanone, ACS grade
    • 2-BUTANONE [FCC]
    • 2-BUTANONE [FHFI]
    • Pesticide Code: 044103
    • ghl.PD_Mitscher_leg0.417
    • CHEMBL15849
    • 2-Butanone, analytical standard
    • 2-Butanone, LR, >=99%
    • METHYL ETHYL KETONE [MI]
    • Methyl ethyl ketone, ACS reagent
    • METHYL ETHYL KETONE [HSDB]
    • 2-Butanone, AR, >=99.5%
    • APA82009
    • METHYL ETHYL KETONE [VANDF]
    • 2-Butanone, technical grade, 99%
    • Tox21_200041
    • LMFA12000043
    • STL146562
    • 2-Butanone, HPLC Grade, 99.5%
    • 2-Butanone, natural, >=99%, FG
    • METHYL ETHYL KETONE [USP-RS]
    • AKOS000118991
    • 2-Butanone, for HPLC, >=99.7%
    • UN 1193
    • 2-Butanone, ReagentPlus(R), >=99%
    • CAS-78-93-3
    • 2-Butanone, >=99.5%, FCC, FG
    • NCGC00090973-01
    • NCGC00090973-02
    • NCGC00257595-01
    • BP-30009
    • 2-Butanone 100 microg/mL in Acetonitrile
    • Ethyl methyl ketone or methyl ethyl ketone
    • 2-Butanone, SAJ first grade, >=99.0%
    • 2-Butanone, JIS special grade, >=99.0%
    • E0140
    • NS00003885
    • C02845
    • 2-Butanone, HPLC grade, for HPLC, >=99.5%
    • A839534
    • ETHYL METHYL KETONE (METHYL ETHYL KETONE)
1 of 3
Name CAS Botanical Proportion
Truffle, black (Perigord) Tuber melanosporum, fam. Ascomycetae 2.5%
Apple flower Malus arnoldiana (Rehd) Sarg. var. Redgold, fam. Rosaceae 0.01%
Marigold pot 1 70892-20-5 Calendula officinalis L. (Pot Marigold), fam. Asteraceae (Compositae) 0.01%
Marigold pot 2 70892-20-5 Calendula officinalis L. (Pot Marigold), fam. Asteraceae (Compositae) 0.2%
Ambrette seed (China) 8015-62-1 Hibiscus abelmoschus L. (Abelmoschus moschatus Moench), fam. Malvaceae 0.02%
Santolina chamaecyparisus (Egypt) 84961-58-0 Santolina chamaecyparisus L., fam. Asteraceae (Compositae) 0.01%
Thyme 5 8007-46-3 Thymus vulgaris L., fam. Lamiaceae (Labiatae) 0.01%
Ageratum conyzoides (Ghana) 85480-32-6 Ageratum conyzoides L., fam. Asteraceae (Compositae) 0.01%
Truffle, white (Italy) Tuber magnatum Pico, fam. Ascomycetae 5.0%
Cyphomandra betacea fruit Cyphomandra betacea Sendtn., fam. Solanaceae (tree tomato, tamarillo) 0.01%
Pineapple pulp Ananas comosus (L.) Merr., fam. Bromeliaceae 0.81%