ChemicalBook > CAS DataBase List > trans-2-Methyl-2-pentenoic acid

trans-2-Methyl-2-pentenoic acid

Product Name
trans-2-Methyl-2-pentenoic acid
CAS No.
16957-70-3
Chemical Name
trans-2-Methyl-2-pentenoic acid
Synonyms
STRAWBERRIFF;FEMA 3195;(E)-2-Methylpent-2-enoic acid;FEMA NUMBER 3195;(e)-2-pentenoicaci;Methyl-2-pentenoic;RARECHEM AL BE 0127;METHYL-2-PENTENSAEURE, 2-;(E) 2-METHYL PENTENOIC ACID;(E)-2-Methylpent-2-en-1-sure
CBNumber
CB5403219
Molecular Formula
C6H10O2
Formula Weight
114.14
MOL File
16957-70-3.mol
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trans-2-Methyl-2-pentenoic acid Property

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.)
Flash point:
226 °F
storage temp. 
Sealed in dry,Room Temperature
solubility 
soluble in Chloroform, Methanol
form 
clear liquid
pka
5.00±0.19(Predicted)
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)
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Safety

Hazard Codes 
C
Risk Statements 
34
Safety Statements 
26-36/37/39-45
RIDADR 
UN 3261 8/PG 3
WGK Germany 
2
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
HS Code 
2916199590
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P363Wash contaminated clothing before reuse.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
W319503
Product name
trans-2-Methyl-2-pentenoic acid
Purity
≥98%, FCC, FG
Packaging
sample
Price
$67
Updated
2024/03/01
Sigma-Aldrich
Product number
264776
Product name
trans-2-Methyl-2-pentenoic acid
Purity
97%
Packaging
25g
Price
$40.7
Updated
2024/03/01
TCI Chemical
Product number
M2814
Product name
trans-2-Methyl-2-pentenoic Acid
Purity
>97.0%(GC)(T)
Packaging
5g
Price
$31
Updated
2024/03/01
TCI Chemical
Product number
M2814
Product name
trans-2-Methyl-2-pentenoic Acid
Purity
>97.0%(GC)(T)
Packaging
25g
Price
$88
Updated
2024/03/01
Alfa Aesar
Product number
H60391
Product name
trans-2-Methyl-2-pentenoic acid
Purity
97%
Packaging
5g
Price
$20.9
Updated
2021/12/16
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trans-2-Methyl-2-pentenoic acid Chemical Properties,Usage,Production

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

Not classified

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

Raw materials

Preparation Products

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trans-2-Methyl-2-pentenoic acid Suppliers

Americas 1 Belgium 1 China 154 Europe 1 France 1 Germany 1 India 1 Japan 1 Switzerland 1 United Kingdom 3 United States 28 USA 1 Global 194
TargetMol Chemicals Inc.
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View Lastest Price from trans-2-Methyl-2-pentenoic acid manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
trans-2-Methyl-2-pentenoic acid 16957-70-3
Price
US $100.00/KG
Min. Order
1KG
Purity
99%min
Supply Ability
200TON
Release date
2024-10-28
Hebei Mojin Biotechnology Co., Ltd
Product
trans-2-Methyl-2-pentenoic acid 16957-70-3
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-06-29
Career Henan Chemical Co
Product
trans-2-Methyl-2-pentenoic acid 16957-70-3
Price
US $1.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
20tons
Release date
2018-08-06

16957-70-3, trans-2-Methyl-2-pentenoic acidRelated Search:

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  • FEMA NUMBER 3195
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