2-Cyclopentaneacetic acid
Cyclopentylacetic acid
CAS: 1123-00-8
Molecular Formula: C7H12O2
2-Cyclopentaneacetic acid - Names and Identifiers
| Name | Cyclopentylacetic acid |
| Synonyms | cyclopentylacetate 2-cyclopentylacetate Cyclopentyacetic acid CYCLOPENTYLACETIC ACID Cyclopentylacetic acid Cyclopentaneacetic acid CYCLOPENTANEACETIC ACID cycylopentylacetic acid 2-Cyclopentaneacetic acid (Carboxymethyl)cyclopentane |
| CAS | 1123-00-8 |
| EINECS | 214-368-7 |
| InChI | InChI=1/C7H12O2/c8-7(9)5-6-3-1-2-4-6/h6H,1-5H2,(H,8,9)/p-1 |
2-Cyclopentaneacetic acid - Physico-chemical Properties
| Molecular Formula | C7H12O2 |
| Molar Mass | 128.17 |
| Density | 1.022 g/mL at 25 °C (lit.) |
| Melting Point | 12-14°C |
| Boling Point | 133-134 °C/23 mmHg (lit.) |
| Flash Point | 229°F |
| Vapor Presure | 0.0237mmHg at 25°C |
| Appearance | Liquid |
| Color | Clear colorless |
| BRN | 2040821 |
| pKa | 4.85±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | n20/D 1.453(lit.) |
| Physical and Chemical Properties | Colorless liquid. Melting point 13-14 °c, boiling point 226-230 °c, 139-140 °c (3.47kPa),133-134 °c (3.07kPa), relative density 1.0216(18 °c), refractive index 1.4523(18 °c). Insoluble in water, soluble in organic solvents. |
2-Cyclopentaneacetic 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 |
| UN IDs | UN 3334 |
| WGK Germany | 3 |
| HS Code | 29162090 |
| Hazard Note | Irritant |
2-Cyclopentaneacetic acid - Nature
Open Data Verified Data
colorless liquid. Melting point 13~14 ℃, boiling point 226~230 ℃, relative density 1.0216 (18 ℃), refractive index 1. 4523 (18 ℃). Insoluble in water, soluble in organic solvents.
Last Update：2025-06-10 22:55:16
2-Cyclopentaneacetic acid - Preparation Method
Open Data Verified Data
diethyl cyclopentylmalonate is obtained by the interaction of bromocyclopropane with diethyl malonate, and then obtained by hydrolysis and decarboxylation.
Last Update：2022-01-01 10:38:51
2-Cyclopentaneacetic acid - Application
Open Data Verified Data
This product is a kind of organic synthesis raw material, can be used for the synthesis of cyclopentyl acetaldehyde, and then the preparation of cyclopentyl methyl thiazide.
Last Update：2025-08-19 16:24:40
2-Cyclopentaneacetic acid - Reference Information
| Use | Cyclopentylacetic acid is a reagent for the synthesis of cyclopentylamine. Cyclopentylamine is a vasoconstrictor that acts as the neurotransmitter norepinephrine and epinephrine And dopamine release agent. Organic synthesis intermediates. It is used to synthesize cyclopentyl acetaldehyde and then prepare cyclopentenethiazide (diuretic antihypertensive drug). |
| Production method | From the action of bromocyclopropane and diethyl malonate to obtain diethyl cyclopentyl malonate, which is then hydrolyzed and decarboxylated. |
Last Update：2024-04-09 15:16:47
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