2-Cyclopenteneacetic acid.

2-Cyclopenteneacetic acid. - Names and Identifiers

Name	2-cyclopentene-1-acetic acid
Synonyms	2-cyclopentene-1-acetic 2-Cyclopenteneacetic acid. cyclopent-2-enylacetic acid 2-cyclopentene-1-acetic acid (2-Cyclopentenyl)acetic acid 2-CYCLOPENTENE-1-ACETIC ACID 2-Cyclopenten-1-ylacetic acid cyclopent-2-en-1-ylacetic acid (1S)-cyclopent-2-en-1-ylacetate (1R)-cyclopent-2-en-1-ylacetate
CAS	13668-61-6
EINECS	237-146-1
InChI	InChI=1/C7H10O2/c8-7(9)5-6-3-1-2-4-6/h1,3,6H,2,4-5H2,(H,8,9)/p-1/t6-/m1/s1

2-Cyclopenteneacetic acid. - Physico-chemical Properties

Molecular Formula	C7H10O2
Molar Mass	126.15
Density	1.047g/mLat 25°C(lit.)
Melting Point	19°C(lit.)
Boling Point	93-94°C2.5mm Hg(lit.)
Flash Point	>230°F
Vapor Presure	0.0148mmHg at 25°C
BRN	2042172
pKa	4.61±0.10(Predicted)
Storage Condition	Room Temprature
Stability	Stable. Incompatible with bases, oxidizing agents, reducing agents.
Refractive Index	n20/D 1.468(lit.)
MDL	MFCD00001400

2-Cyclopenteneacetic acid. - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection
WGK Germany	3

2-Cyclopenteneacetic acid. - Introduction

2-Cyclopentene-1-acetic acid, also known as cyclopentenyl acetic acid, is an organic compound. The following is a description of its nature, use, preparation and safety information:

1. nature:
-Chemical formula: C8H12O2
-Molecular weight: 140.18g/mol
-Appearance: 2-cyclopentene-1-acetic acid is a colorless liquid with a special aroma.
-Solubility: It is almost insoluble in water, but can be dissolved in organic solvents such as alcohol and ether.

2. use:
-2-cyclopentene-1-acetic acid is an important organic synthesis intermediate. It can be used to synthesize a variety of organic compounds, such as fragrances, dyes and drugs.
-Due to its special aroma, it is also used as a flavor and fragrance.

3. Preparation method:
- 2-cyclopentene -1-acetic acid can be obtained by reacting brominated butylene or cyclopentene bromide with acetic acid.
-The specific step includes heating and reacting brominated butylene or brominated cyclopentene with acetic acid in the presence of a base to generate 2-cyclopentene-1-acetic acid.

4. Safety Information:
-2-cyclopentene-1-acetic acid is irritating to the skin and eyes and should be avoided.
-During use and storage, appropriate protective measures should be taken, such as wearing safety gloves and goggles.
-Use in a well-ventilated place to avoid inhaling its vapors.
-If ingested or inhaled, seek medical help immediately.

Last Update：2024-04-09 21:04:16