FEMA 3148

CAS No.：3025-30-7

Other grades of this product :

FEMA 3148 Basic information

Product Name:	FEMA 3148
Synonyms:	ethyltrans-2-cis-4-decandienoate,mixtureofisomers;trans,cis-deca-2,4-dienoicacidethylester;(2E,4Z)-PEAR ESTER;ETHYL 2,4-DECADIENOATE;ETHYL (2E,4Z)-DECADIENOATE;ETHYL 2-TRANS-4-CIS-DECADIENOATE;FEMA 3148;ETHYL TRANS-2,CIS-4-DECADIENOATE
CAS:	3025-30-7
MF:	C12H20O2
MW:	196.29
EINECS:	221-178-8
Product Categories:	Building Blocks;C12 to C63;Carbonyl Compounds;Chemical Synthesis;Esters;Organic Building Blocks;Alphabetical Listings;Certified Natural ProductsFlavors and Fragrances;E-F;Flavors and Fragrances
Mol File:	3025-30-7.mol

FEMA 3148 Chemical Properties

Melting point	-60 °C
Boiling point	70-72 °C0.05 mm Hg(lit.)
density	0.905 g/mL at 25 °C(lit.)
vapor pressure	1.6hPa at 21.1℃
FEMA	3148 \| ETHYL TRANS-2,CIS-4-DECADIENOATE
refractive index	n20/D 1.486(lit.)
Fp	>230 °F
storage temp.	2-8°C
solubility	Chloroform (Slightly), Methanol (Slightly)
form	neat
color	Colourless
JECFA Number	1192
BRN	1724176
LogP	4.1-4.7 at 35℃ and pH7
EPA Substance Registry System	2,4-Decadienoic acid, ethyl ester, (2E,4Z)- (3025-30-7)

Safety Information

Hazard Codes	Xi,N
Risk Statements	38-50/53
Safety Statements	24/25-61-60
RIDADR	UN 3082 9/PG 3
WGK Germany	1
RTECS	HD3510900
F	10-23
HS Code	29161995
Toxicity	LD50 oral in rat: > 5gm/kg

MSDS Information

Provider	Language
SigmaAldrich	English
ACROS	English

FEMA 3148 Usage And Synthesis

Chemical Properties	clear colorless to yellowish liquid
Chemical Properties	Ethyl (2E,4Z)-2,4-Decadienoate has been identified in pears and has the typical aroma of Williams pears. Synthesis of ethyl (2E,4Z)-2,4-decadienoate starts from (Z)-1-heptenyl bromide, which is converted into a 1-heptenyllithium cuprate complex with lithium and copper iodide. Reaction with ethyl propiolate yields a mixture of 95% ethyl (2E,4Z)- and 5% ethyl (2E,4E)-2,4-decadienoate. Pure ethyl (2E,4Z)-2,4-decadienoate is obtained by fractional distillation. A biotechnological process for its preparation has been developed.
Chemical Properties	Ethyl-trans-2, cis-4-decadienoate has a characteristic pear-like flavor and a light fruity aroma.
Occurrence	Reported found in Bartlett pears, apple, grape, durian (Durio zibethinus), pear brandy, quince and spineless monkey orange (Strychnos madagasc).
Uses	Potential applications include the profile enhancement of guava, melon, pear, apple, banana, kiwi, grape, golden delicious apple, fruit cocktail juices, fruit nectar, mamey and other tropical backgrounds.
Aroma threshold values	Detection: 100 ppb. Aroma characteristics at 1.0%: sweet ripe pear, creamy and slightly fatty with fruity, green, waxy apple, fleshy nuances
Taste threshold values	Taste characteristics at 5 ppm: ripe pear, green fruity, waxy apple, tropical notes, fatty golden delicious apple fleshy. Taste characteristics at 20 ppm: green, fruity, apple and pear with waxy tropical nuances.
Synthesis Reference(s)	Tetrahedron, 36, p. 1961, 1980 DOI: 10.1016/0040-4020(80)80209-2
General Description	Natural occurrence: Apple, pear, grape, pear brandy and quince.
Biochem/physiol Actions	Odor at 1.0%
Synthesis	Synthetically via the lithium vinyl cuprates.

FEMA 3148 Preparation Products And Raw materials

Raw materials	Lithium carbonate
Preparation Products	decadienal,(E,Z)-2,4-decadienal

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