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| | METHYL VALERATE Basic information |
| | METHYL VALERATE Chemical Properties |
| Melting point | -91°C | | Boiling point | 128 °C (lit.) | | density | 0.875 g/mL at 25 °C (lit.) | | vapor pressure | 19.33hPa at 20℃ | | refractive index | n20/D 1.397(lit.) | | FEMA | 2752 | METHYL VALERATE | | Fp | 72 °F | | storage temp. | Flammables area | | solubility | 5g/l | | form | Liquid | | Specific Gravity | 0.892 (20/4℃) | | color | Clear colorless | | Odor | at 1.00 % in dipropylene glycol. sweet green fruity apple pineapple nutty | | Odor Type | fruity | | biological source | synthetic | | Odor Threshold | 0.0022ppm | | Water Solubility | 3.5g/L at 20℃ | | JECFA Number | 159 | | BRN | 1741905 | | Dielectric constant | 4.3（19℃） | | LogP | 2.25 at 25℃ | | CAS DataBase Reference | 624-24-8(CAS DataBase Reference) | | EPA Substance Registry System | Methyl valerate (624-24-8) |
| Hazard Codes | Xn | | Risk Statements | 10-20-2017/10/20 | | Safety Statements | 16-7/9-2007/9/16 | | RIDADR | UN 3272 3/PG 2 | | WGK Germany | 2 | | RTECS | YV7750500 | | TSCA | Yes | | HazardClass | 3 | | PackingGroup | II | | HS Code | 29156000 |
| | METHYL VALERATE Usage And Synthesis |
| Description | Methyl pentanoate, commonly known as methyl valerate, is the methyl ester of pentanoic acid (valeric acid) with a fruity odor.
Methyl pentanoate is commonly used in fragrances, beauty care, soap, laundry detergents at levels of 0.1 – 1 % .
In a very pure form ( greater than 99.5 % ) it is used as a plasticizer in the manufacture of plastics.
It is also used as an insecticide. | | Chemical Properties | Methyl valerate has a pungent, green-fruity odor that is apple- and
pineapple-like with a corresponding flavor at 1 0 - 5 0 ppm. May
be prepared by direct esterification of the valeric acid with methanol
in the presence of concentrated H2S04; note: this ester hydrolyzes
readily. | | Chemical Properties | Methyl valerate has a pungent, green-fruity odor, apple and pineapple-like. It has a similar flavor at 10 to 50 ppm | | Chemical Properties | clear colorless liquid | | Occurrence | Reported found in small amounts in the essential oil from the fruits of Ananas sativus Schult. Also reported
present in apple, coffee, honey, kiwi, melon, papaya, pineapple, strawberry, tea, wine, blackberry, baked potato, olive, starfruit, passion fruit, soursop, Bourbon vanilla, mountain papaya and naranjilla fruit. | | Uses | Methyl valerate can be used:
- In the preparation of lankacidin C 8-valerate.
- As a reactant to synthesize bis(2,2,2-trifluoroethyl) 2-oxoalkylphosphonates.
- As a substrate in the fluorination reactions of unactivated C(sp3)H bonds using decatungstate photocatalyst and N-fluorobenzenesulfonimide.
| | Application | Methyl valerate is primarily used in flavor compositions, although it occasionally finds application in certain phases of perfumery (masking, household products of certain type, etc.).
Its Apple-like character is useful in fruit
complexes where diffusive power is desirable
(chewing gum, etc.) and it performs very well
in Pineapple or fantasy flavors. | | Preparation | By direct esterification of valeric acid with methanol in the presence of concentrated H2SO4. Note: This ester hydrolyzes
readily | | Aroma threshold values | Detection: 20 to 89 ppb | | Taste threshold values | Taste characteristics at 20 ppm: sweet, ripe, fruity with sweaty, dairy and cheesy nuance | | Synthesis Reference(s) | Journal of the American Chemical Society, 97, p. 1180, 1975 DOI: 10.1021/ja00838a036 | | General Description | Clear colorless to yellowish oily liquid. | | Air & Water Reactions | Highly flammable. Insoluble in water. | | Reactivity Profile | METHYL VALERATE is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. METHYL VALERATE reacts with oxidizing agents, bases and acids. | | Fire Hazard | METHYL VALERATE is flammable. | | Flammability and Explosibility | Flammable |
| | METHYL VALERATE Preparation Products And Raw materials |
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