Ethyl (R)-3-hydroxybutyrate（CAS# 24915-95-5)
| Risk Codes | R36/37/38 – Irritating to eyes, respiratory system and skin. R52 – Harmful to aquatic organisms |
| Safety Description | 24/25 – Avoid contact with skin and eyes. |
| UN IDs | 1993 |
| WGK Germany | 3 |
| HS Code | 29181990 |
Introduction
Ethyl (R)-(-)-3-hydroxybutyrate, also known as (R)-(-)-3-hydroxybutyric acid ethyl ester, is an organic compound. Its properties are as follows:
Quality:
- Appearance: Colorless liquid
Use:
Ethyl (R)-(-)-3-hydroxybutyrate has a wide range of applications in the field of chemistry:
- It can play an important role as a catalyst in organic synthesis reactions.
Method:
There are several ways to prepare ethyl (R)-(-)-3-hydroxybutyrate:
- A common method is to prepare by esterification of hydroxybutyric acid, which reacts hydroxybutyric acid with ethanol, adds an acid catalyst such as sulfuric acid or formic acid, and distills the pure product after the reaction.
- It can also be prepared by condensing succinic acid with ethanol, adding acid catalysts, and then hydrolysis.
Safety Information:
Ethyl (R)-(-)-3-hydroxybutyrate is relatively safe for general use, but the following should still be noted:
- It is a flammable liquid and should be avoided from contact with open flames and high temperatures.
- Necessary safety precautions, such as wearing protective glasses and gloves, should be taken during operation.
- Avoid inhalation, ingestion, and skin-to-skin contact to avoid discomfort and injury.
- In case of contact, rinse the affected area immediately with plenty of water and seek medical attention.
