Basic information Safety Supplier Related
ChemicalBook >  Product Catalog >  Flavors and fragrances >  Synthetic fragrances >  Carboxylic acids and esters >  Carboxylic acids >  2-Methyl-2-pentenoic acid

2-Methyl-2-pentenoic acid

Basic information Safety Supplier Related

2-Methyl-2-pentenoic acid Basic information

Product Name:
2-Methyl-2-pentenoic acid
Synonyms:
  • FEMA NUMBER 3195
  • FEMA 3195
  • 2-hexenoate
  • 2-Methyl-2-pentenoic acid,99%
  • Strawberriff Acid
  • Natural 2-methyl-2-pentenoic acid
  • 2-METHYL-2-PENTENOIC ACID
  • STRAWBERRIFF
CAS:
3142-72-1
MF:
C6H10O2
MW:
114.14
EINECS:
221-552-0
Product Categories:
  • Acids and Esters
Mol File:
3142-72-1.mol
More
Less

2-Methyl-2-pentenoic acid Chemical Properties

Melting point:
26-28 °C(lit.)
Boiling point:
123-125 °C30 mm Hg(lit.)
Density 
0.979 g/mL at 25 °C
vapor density 
>1 (vs air)
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
pka
5.00±0.19(Predicted)
form 
powder to lump
color 
White to Almost white
Odor
at 10.00 % in dipropylene glycol. dry acid sweaty strawberry woody fruity jam
Odor Type
acidic
FreezingPoint 
20.0 to 25.0 ℃
JECFA Number
1210
InChIKey
JJYWRQLLQAKNAD-SNAWJCMRSA-N
LogP
1.89
CAS DataBase Reference
3142-72-1(CAS DataBase Reference)
NIST Chemistry Reference
2-Pentenoic acid, 2-methyl-(3142-72-1)
EPA Substance Registry System
2-Pentenoic acid, 2-methyl- (3142-72-1)
More
Less

Safety Information

Hazard Codes 
C
Risk Statements 
34-22-41
Safety Statements 
26-36/37/39-45
RIDADR 
UN 3261 8/PG 3
WGK Germany 
2
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
HS Code 
29161900

MSDS

More
Less

2-Methyl-2-pentenoic acid Usage And Synthesis

Description

May be prepared by distillation of 2-hydroxy-2-methylvaleric acid (m-form).

Chemical Properties

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

Chemical Properties

white semi-transparent crystalline

Chemical Properties

With a dry acid note, 2-Methyl-2-pentenoic Acid is found in the odor of strawberries.The acid can be prepared from the corresponding saturated one by α-bromination followed by dehydrobromination.
It is used in fragrances to enhance fruity notes and in strawberry flavors.

Occurrence

Reported found in strawberry

Uses

2-Methyl-2-pentenoic Acid (CAS# 3142-72-1) can be used for cleansing and refreshing hair and scalp. It can also be used to store and cure food products, and for providing a long-lasting strawberry odor.

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-).

Preparation

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

Taste threshold values

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

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

Raw materials

2-Methyl-2-pentenoic acidSupplier

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Email
jkinfo@jkchemical.com
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Email
3bsc@sina.com
Alfa Aesar
Tel
400-6106006
Email
saleschina@alfa-asia.com
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Email
Sales-CN@TCIchemicals.com
Energy Chemical
Tel
021-021-58432009 400-005-6266
Email
sales8178@energy-chemical.com