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Methyl phenylacetate

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CAS:101-41-7
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Methyl phenylacetate Basic information
Product Name:Methyl phenylacetate
Synonyms:Acetic acid, phenyl-, methyl ester;METHYL ALPHA-TOLUATE;METHYL BENZYLFORMATE;METHYL A-TOLUATE;METHYL PHENYLACETATE;FEMA 2733;Methyl phenylacetate/Phenylacetic acid methyl ester;Phenylacetic Acid Phenylacetate
CAS:101-41-7
MF:C9H10O2
MW:150.17
EINECS:202-940-9
Product Categories:Pharmaceutical Intermediates;flavoring;Organics;C8 to C9;Carbonyl Compounds;Esters;API intermediates;Alphabetical Listings;Flavors and Fragrances;M-N;101-41-7
Mol File:101-41-7.mol
Methyl phenylacetate Structure
Methyl phenylacetate Chemical Properties
Melting point 107-115 °C
Boiling point 218 °C (lit.)
density 1.066 g/mL at 20 °C (lit.)
vapor pressure 16.9-75Pa at 20℃
FEMA 2733 | METHYL PHENYLACETATE
refractive index n20/D 1.503(lit.)
Fp 195 °F
storage temp. Store below +30°C.
solubility Chloroform (Slightly), Methanol (Slightly)
color Colourless
Odorat 10.00 % in dipropylene glycol. sweet floral honey spice waxy almond
Odor Typehoney
Water Solubility Miscible with water.
Merck 14,7268
JECFA Number1008
BRN 878795
Stability:Stable. Combustible. Incompatible with strong oxidizing agents, strong bases.
InChIKeyCRZQGDNQQAALAY-UHFFFAOYSA-N
LogP1.91-2.09 at 21.9-25℃
CAS DataBase Reference101-41-7(CAS DataBase Reference)
NIST Chemistry ReferenceBenzeneacetic acid, methyl ester(101-41-7)
EPA Substance Registry SystemMethyl phenylacetate (101-41-7)
Safety Information
Hazard Codes Xn
Risk Statements 21-R21
Safety Statements 23-24/25
WGK Germany 2
RTECS AJ3175000
TSCA Yes
HS Code 29163500
Hazardous Substances Data101-41-7(Hazardous Substances Data)
toxicityThe acute oral LD50 in rats was reported as 2.55 g/kg (1.67-3.43 g/kg) and the acute dermal LD50 in rabbits as 2.4 g/kg (0.15-4.7 g/kg) (Moreno, 1974).
MSDS Information
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Methyl phenylacetate Usage And Synthesis
Chemical PropertiesMethyl phenylacetate is a clear colorless liquid that is only slightly soluble in water, but very soluble in most organic solvents. It has a strong odor similar to honey. The odor is so strong that recommended smelling is of a solution with 10% or less methyl phenyl acetate. This compound also naturally occurs in brandy, capsicum, coffee, honey, pepper and some wine.
OccurrenceReported found in cocoa, coffee, strawberry, pineapple, pepper, hop oil, cognac, peanut, honey, starfruit, Bourbon vanilla, mountain papaya, roasted chicory root and rooibus tea (Aspalathus linearis).
UsesMethyl phenylacetate is utilized for partition coefficient measurement experiments. It is mainly used in the flavor industry and in perfumes to impart honey scents. Further, it acts as a precursor to prepare synthetic perfumes. It acts as an acylating agent and involved in the enantioselective acylation of beta-lactam intermediate using penicillin G amidase.
ApplicationMethyl Phenylacetate is used as a reagent in the synthesis of various organic reactions, one of which is the synthesis of Vulpinic Acid; a lichen metabolite with anti-inflammatory properties. It is also used in the formulation of edible flavors, for the preparation of honey, chocolate, tobacco and other flavors; it can also be used in daily chemical flavors for the preparation of rose, oriental flavors and other flavors. IFRA has no restrictions.
PreparationMethyl phenylacetate is synthesized from phenylacetonitrile by hydrolysis and esterification. Put methanol into a dry glass-lined reaction pot, stir and cool to below 30°C, add sulfuric acid dropwise, heat up to 90°C after adding, and start adding phenylacetonitrile dropwise, control the temperature at about 95°C, and finish adding in 1.5h. After reacting at 95-100 °C for 6 h, it was cooled to below 40 °C and diluted with water equivalent to about 0.6 times the reaction solution. The acid water was separated by standing, and a saturated sodium carbonate solution was added for neutralization and washing, and the aqueous layer was discarded. It is dehydrated with anhydrous calcium chloride and fractionated under reduced pressure to obtain methyl phenylacetate with a yield of 80%.
DefinitionChEBI: Methyl benzeneacetate is a member of benzenes. It is a flavoring ingredient. Odoriferous constituent of many plants. It is generally found in brandy, capsicum, honey, pepper, some wine, coca and coca products.
Aroma threshold valuesDetection: 25 ppb
Taste threshold valuesTaste characteristics at 30 ppm: floral, fruity, honey, spice, waxy and sweet
Synthesis Reference(s)Journal of the American Chemical Society, 93, p. 4919, 1971 DOI: 10.1021/ja00748a051
Tetrahedron Letters, 30, p. 2945, 1989 DOI: 10.1016/S0040-4039(00)99165-2
General DescriptionMethyl phenylacetate has been identified in the volatile fraction of beewax absolute oil, dried fruiting bodies of Boletus auripes, Chinese fermented black soybeans and peated malt.
Biochem/physiol ActionsMethyl phenylacetate undergoes decomposition on photolysis in methanol. Methyl phenylacetate acts as acylating agent and causes the enantioselective acylation of beta-lactam intermediate using penicillin G amidase. Methyl phenylacetate is the starting material in manufacture of synthetic perfumes.
Safety ProfileModerately toxic by ingestion and skin contact. A skin irritant. Combustible liquid. When heated to decomposition it emits acrid smoke and irritating fumes. See also ESTERS.
Tag:Methyl phenylacetate(101-41-7) Related Product Information
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