trans-2-Methyl-2-pentenoic acid

trans-2-Methyl-2-pentenoic acid Basic information

Product Name:	trans-2-Methyl-2-pentenoic acid
Synonyms:	FEMA NUMBER 3195;FEMA 3195;(e)-2-methylpent-2-en-1-oic acid;RARECHEM AL BE 0127;STRAWBERRIFF;TRANS-2-METHYL-2-PENTENOIC ACID 98+% F;2-Pentenoic acid, 2-methyl-, (2E)-;(E)-2-Methylpent-2-en-1-sure
CAS:	16957-70-3
MF:	C6H10O2
MW:	114.14
EINECS:	241-026-4
Product Categories:	C6;Carbonyl Compounds;Carboxylic Acids
Mol File:	16957-70-3.mol

trans-2-Methyl-2-pentenoic acid Chemical Properties

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℃
FEMA	3195 \| 2-METHYL-2-PENTENOIC ACID
refractive index	n20/D 1.46(lit.)
Fp	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
Odor Type	fruity
Water Solubility	insoluble
InChIKey	JJYWRQLLQAKNAD-SNAWJCMRSA-N
LogP	1.9 at 25℃
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

MSDS Information

trans-2-Methyl-2-pentenoic acid Usage And Synthesis

Chemical Properties	clear colorless to pale yellow liquid
Chemical Properties	2-Methyl-2-pentenoic acid has a fruity odor.
Occurrence	Reported found in strawberry
Uses	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.
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	Notclassified

trans-2-Methyl-2-pentenoic acid Preparation Products And Raw materials

Raw materials

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