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| IUPAC name : | methyl 3-oxobutanoate |
| InChI : | InChI=1/C5H8O3/c1-4(6)3-5(7)8-2/h3H2,1-2H3 |
| InChIKey : | WRQNANDWMGAFTP-UHFFFAOYAM |
| SMILES : | CC(=O)CC(=O)OC |
| (EINECS) number : | 203-299-8 |
| eu annex : | 607-137-00-0 |
| cas number : | 105-45-3 |
| fl. number : | 09.634 |
| molar refractivity : | 27.01 ± 0.3 cm3 |
| parachor : | 260.8 ± 4.0 cm3 |
| index of refraction : | 1.399 ± 0.02 |
| surface tension : | 29.7 ± 3.0 dyne/cm |
| density : | 1.039 ± 0.06 g/cm3 |
| polarizability : | 10.71 ± 0.5 10-24cm3 |
| xlogp : | 0.30 |
| molecular weight : | 116.1152200 |
| formula : | C5 H8 O3 |
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| export tariff code : | 2915.39.9050 |
| fda reg : | unspecified |
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organoleptics :
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| odor strength : | medium |
odor description : at 100.00 %. | fresh fruity citrus green |
| substantivity : | 4 Hour(s) |
properties :
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| appearence : | colorless clear liquid |
| assay : | 98.00 to 100.00 %
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| Food Chemicals Codex Listed : | No |
| specific gravity : | 1.07300 to 1.07900 @ 25.00 °C.
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| pounds per gallon - calc. : | 8.928 to 8.978
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| refractive index : | 1.41500 to 1.42100 @ 20.00 °C.
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| melting point : | -80.00 °C. @ 760.00 mm Hg
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| boiling point : | 169.00 to 171.00 °C. @ 760.00 mm Hg
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| logp : | -0.69 |
safety :
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| Oral Toxicity(LD50) : |
Oral-Rat 2800.00 mg/kg (BASF, 1978)
Oral-Rat 3000.00 mg/kg (Smyth & Carpenter, 1948)
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| Dermal Toxicity(LD50) : |
Not determined
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| Maximised Survey-derived Daily Intakes (MSDI-EU) : | 0.012 (μg/capita/day) |
| modified Theoretical Added Maximum Daily Intake (mTAMDI) : | 3700 (μg/person/day) |
| Threshold of concern : | 1800 (μg/person/day) |
| flash point ( Deg. F. ) : | 147.00 °F. TCC ( 63.89 °C. )
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| recommendation for methyl acetoacetate usage levels up to : |
| | not for fragrance use.
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| Food categories according to Commission Regulation EC No. 1565/2000 (EC, 2000) in FGE.06 (EFFA, 2002a). According to the Industry the "normal" use is defined as the average of reported usages and "maximum use" is defined as the 95th percentile of reported usages (EFFA, 2002i). |
| Note : mg/kg = 0.001/1000 = 0.000001 = 1/1000000 = ppm. |
| | average usage mg/kg | maximum usage mg/kg |
| Dairy products, excluding products of category 02.0 (01.0) : | 7.00000 | 35.00000 |
| Fats and oils, and fat emulsions (type water-in-oil) (02.0) : | 5.00000 | 25.00000 |
| Edible ices, including sherbet and sorbet (03.0) : | 10.00000 | 50.00000 |
| Processed fruit (04.1) : | 7.00000 | 35.00000 |
| Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2) : | - | - |
| Confectionery (05.0) : | 10.00000 | 50.00000 |
| Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0) : | 5.00000 | 25.00000 |
| Bakery wares (07.0) : | 10.00000 | 50.00000 |
| Meat and meat products, including poultry and game (08.0) : | 2.00000 | 10.00000 |
| Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0) : | 2.00000 | 10.00000 |
| Eggs and egg products (10.0) : | - | - |
| Sweeteners, including honey (11.0) : | - | - |
| Salts, spices, soups, sauces, salads, protein products, etc. (12.0) : | 5.00000 | 25.00000 |
| Foodstuffs intended for particular nutritional uses (13.0) : | 10.00000 | 50.00000 |
| Non-alcoholic ("soft") beverages, excl. dairy products (14.1) : | 5.00000 | 25.00000 |
| Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2) : | - | - |
| Ready-to-eat savouries (15.0) : | 20.00000 | 100.00000 |
| Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0) : | 5.00000 | 25.00000 |
safety links :
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| (EINECS) number : | 203-299-8 |
| RTECS : | AK5775000 for 105-45-3 |
| chemidplus : | 000105453 |
| EPA Substance Registry Services : | 105-45-3 |
| NLM Chemical Carcinogenesis Research Information System : | 105-45-3 |
| NLM Developmental and Reproductive Toxicity : | 105-45-3 |
| NLM Env. Mutagen Info. Center : | 105-45-3 |
| NLM GENetic TOXicology : | 105-45-3 |
| EPI System : | view |
other :
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references :
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| fl. number : | 09.634 |
| pubchem : | 150848 |
| NIST Chemistry WebBook : | 3983243641 |