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FEMA 3148

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FEMA 3148 Basic information
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.)
  • refractive index n20/D 1.486(lit.)
  • FEMA 3148 | ETHYL TRANS-2,CIS-4-DECADIENOATE
  • Flash point:>230 °F
  • storage temp. 2-8°C
  • form neat
  • JECFA Number1192
  • BRN 1724176
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
  • 10-23
  • HS Code 29161995
MSDS
FEMA 3148 Usage And Synthesis
  • Chemical Propertiesclear colorless to yellowish liquid
  • Chemical PropertiesEthyl (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 PropertiesEthyl-trans-2, cis-4-decadienoate has a characteristic pear-like flavor and a light fruity aroma.
  • OccurrenceReported found in Bartlett pears, apple, grape, durian (Durio zibethinus), pear brandy, quince and spineless monkey orange (Strychnos madagasc).
  • Aroma threshold valuesDetection: 100 ppb. Aroma characteristics at 1.0%: sweet ripe pear, creamy and slightly fatty with fruity, green, waxy apple, fleshy nuances
  • Taste threshold valuesTaste 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.
  • Chemical SynthesisSynthetically via the lithium vinyl cuprates.
FEMA 3148 Preparation Products And Raw materials
FEMA 3148(3025-30-7)Related Product Information
FEMA 3148SupplierMore
  • Company Name:J & K SCIENTIFIC LTD.
  • Tel:400-666-7788 +86-10-82848833
  • Email:jkinfo@jkchemical.com;market6@jkchemical.com
  •  
  • Company Name:Meryer (Shanghai) Chemical Technology Co., Ltd.
  • Tel:+86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
  • Email:sh@meryer.com
  •  
  • Company Name:Energy Chemical
  • Tel:021-58432009 / 400-005-6266
  • Email:info@energy-chemical.com
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  • Company Name:Thermo Fisher Scientific
  • Tel:800-810-5118
  • Email:cnchemical@thermofisher.com
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  • Company Name:Shanghai WeCan Industrial Co., Ltd
  • Tel:021-61558312
  • Email:pherowecan@gmail.com
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