Methyl 2-methylbutyrate
Synonym(s):Methyl 2-methylbutanoate
- CAS NO.：868-57-5
- Empirical Formula: C6H12O2
- Molecular Weight: 116.16
- MDL number: MFCD00009335
- EINECS: 212-778-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:25:02
What is Methyl 2-methylbutyrate?
Description
Methyl 2-methylbutyrate has a pungent, fruity odor with a sweet, fruity, apple-like taste at low levels. May be prepared from a mixture of esters including methyl 2-methylbutyrate; is obtained from isobutene, CO, and methanol under pressure, or from butene, CO, and an acid catalyst under pressure.
Chemical properties
Methyl-2-methylbutyrate has a sweet, fruity, apple-like odor and an apple-like taste at low concentrations.
Occurrence
The levorotatory and the racemic forms are known. Reported found in fresh strawberry juice, apple, apricot, sour cherry, melon, pineapple, peas, baked potato, peppermint oil, spearmint oil, thymus, durian (Durio zibethinus), olive, mushroom, starfruit, prickly pear, dill herb, cashew apple, cherimoya, loquat, mountain papaya, cape gooseberry and rooibus tea (Aspalathus linearis). bilberry, strawberry, and cheeses
The Uses of Methyl 2-methylbutyrate
DL-2-Methylbutyric Acid Methyl Ester is a volatile compound found in pineapples.
Methyl 2-methylbutyrate, only recerqly appearing on the
market, finds limited use in perfumery and
flavor compositions in the tedious work of
reconstructing certain essential oils, mainly
flavor oils. Its tremendous volatility and "lift"
combined with effect of fresh greenness on a
fruity base may give very attractive and
natural aroma to the important topnotes of
edible essential oils.
It is also used as a trace component of
various fruit flavors. Concentration varies
from 5 to 10 ppm in the finished product.
Preparation
A mixture of esters including methyl-2-methylbutyrate is obtained from isobutene, CO and methanol under pressure, or from butene, CO and an acid catalyst under pressure.
Definition
ChEBI: Methyl (S)-2-Methylbutanoate is a fatty acid ester.
Aroma threshold values
Detection: 0.92 to 4.4 ppb
Taste threshold values
Taste characteristics at 7.5 ppm: sweet, berry, pineapple, etherial, lifting, fruity, tutti-fruitti and ripe with a fatty, green nuance
General Description
Methyl 2-methylbutyrate is an important odor-active constituent of pineapple, apple, cantaloupe, cucumber and strawberries.
Properties of Methyl 2-methylbutyrate
| Melting point: | -91°C (estimate) |
| Boiling point: | 115 °C (lit.) |
| Density | 0.88 g/mL at 25 °C (lit.) |
| refractive index | n |
| FEMA | 2719 | METHYL 2-METHYLBUTYRATE |
| Flash point: | 90 °F |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Very slightly soluble in water, soluble in alcohol and oils. |
| form | Liquid |
| color | Colorless to Almost colorless |
| Odor | at 10.00 % in dipropylene glycol. ethereal estery fruity tutti frutti green apple lily of the valley powdery fatty |
| JECFA Number | 205 |
| BRN | 1720409 |
| CAS DataBase Reference | 868-57-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Butanoic acid, 2-methyl-, methyl ester(868-57-5) |
| EPA Substance Registry System | Butanoic acid, 2-methyl-, methyl ester (868-57-5) |
Safety information for Methyl 2-methylbutyrate
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H226:Flammable liquids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P243:Take precautionary measures against static discharge. |
Computed Descriptors for Methyl 2-methylbutyrate
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