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HomeProduct name listtrans-2-Methyl-2-pentenoic acid

trans-2-Methyl-2-pentenoic acid

  • CAS NO.:16957-70-3
  • Empirical Formula: C6H10O2
  • Molecular Weight: 114.14
  • MDL number: MFCD00002655
  • EINECS: 241-026-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-28 16:48:35
trans-2-Methyl-2-pentenoic acid Structural

What is trans-2-Methyl-2-pentenoic acid?

Chemical properties

clear colorless to pale yellow liquid

Chemical properties

2-Methyl-2-pentenoic acid has a fruity odor.

Occurrence

Reported found in strawberry

The Uses of trans-2-Methyl-2-pentenoic acid

trans-2-Methyl-2-pentenoic Acid is an unsaturated analog of the anticonvulsant Valproic Acid (V094750) and is used for aroma characterization of different beers with different hops.

What are the applications of Application

trans-2-Methyl-2-pentenoic acid is a synthetic reagent used in asymmetric hydrogenation studies

Preparation

By distillation of 2-hydroxy-2-methylvaleric acid (cis-form).

Definition

ChEBI: 2-Methyl-2-pentenoic acid is a methyl-branched fatty acid. It is a conjugate acid of a 2-methyl-(2E)-pentenoate(1-).

Taste threshold values

Taste characteristics at 50 ppm: sour, acidic, sweaty, berry and fruit-like.

General Description

Adsorption and desorption of trans-2-methyl-2-pentenoic acid in dichloromethane has been investigated by using in situ attenuated total reflection infrared spectroscopy. Asymmetric hydrogenation of trans-2-methyl-2-pentenoic acid in hexane over two well defined E-40692 and E-5220 Engelhard Pd/Al2O3 catalysts modified with cinchonidine has been studied.

Flammability and Explosibility

Not classified

Properties of trans-2-Methyl-2-pentenoic acid

Melting point: 26-28 °C (lit.)
Boiling point: 123-125 °C/30 mmHg (lit.)
Density  0.979 g/mL at 25 °C
vapor density  >1 (vs air)
vapor pressure  1.63Pa at 24℃
refractive index  n20/D 1.46(lit.)
FEMA  3195 | 2-METHYL-2-PENTENOIC ACID
Flash point: 226 °F
storage temp.  Sealed in dry,Room Temperature
solubility  soluble in Chloroform, Methanol
pka 5.00±0.19(Predicted)
form  clear liquid
color  Colorless to Light orange to Yellow
Odor at 10.00 % in dipropylene glycol. fruity strawberry woody
Water Solubility  insoluble
CAS DataBase Reference 16957-70-3(CAS DataBase Reference)
NIST Chemistry Reference 2-Pentenoic acid, 2-methyl-, (E)-(16957-70-3)
EPA Substance Registry System 2-Pentenoic acid, 2-methyl-, (2E)- (16957-70-3)

Safety information for trans-2-Methyl-2-pentenoic acid

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
GHS Hazard Statements H314:Skin corrosion/irritation
Precautionary Statement Codes P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P363:Wash contaminated clothing before reuse.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for trans-2-Methyl-2-pentenoic acid

InChIKey JJYWRQLLQAKNAD-SNAWJCMRSA-N

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