Propanoic acid, 2-hydroxy-, ethyl ester, (2R)- (9CI)
(+)-ethyl D-lactate
CAS: 7699-00-5
Molecular Formula: C5H10O3
Propanoic acid, 2-hydroxy-, ethyl ester, (2R)- (9CI) - Names and Identifiers
Propanoic acid, 2-hydroxy-, ethyl ester, (2R)- (9CI) - Physico-chemical Properties
| Molecular Formula | C5H10O3 |
| Molar Mass | 118.13 |
| Density | 1.0345 g/cm3(Temp: 23 °C) |
| Boling Point | 150-153°C |
| Flash Point | 46°C |
| BRN | 1720840 |
| pKa | 13.21±0.20(Predicted) |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Refractive Index | n20/D 1.413 |
Propanoic acid, 2-hydroxy-, ethyl ester, (2R)- (9CI) - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R10 - Flammable R37 - Irritating to the respiratory system R41 - Risk of serious damage to eyes |
| Safety Description | S24 - Avoid contact with skin. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. |
| UN IDs | UN 1192 3/PG 3 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 3 |
| Hazard Class | 3.2 |
| Packing Group | III |
Propanoic acid, 2-hydroxy-, ethyl ester, (2R)- (9CI) - Introduction
()-ethyl D-lactate is an organic compound with the chemical formula C5H10O3. It is an ester compound produced by the reaction of D-lactic acid and ethanol.
The main properties of the
( )-ethyl D-lactate are as follows:
-Appearance: colorless liquid
-Solubility: Soluble in ethanol, ether and ketone solvents, insoluble in water
-Boiling point: about 148-150 degrees Celsius
-Melting point: about -7 degrees Celsius
-Density: about 1.085g/cm3
( )-ethyl D-lactate have many wide-ranging uses:
-Used as a solvent and intermediate: Due to its good solubility and reactivity,( )-ethyl D-lactate is often used as a solvent or intermediate in organic synthesis reactions.
-spices and food additives :( )-ethyl D-lactate has a unique strawberry flavor, so it is often used in the food and spice industry to add strawberry flavor.
-Pharmaceutical field:( )-Ethyl D-lactate can be used to prepare esters of some drugs for intravenous injection.
Preparation of ()-ethyl D-lactate can be done by the following steps:
1. D-lactic acid is reacted with anhydrous acetic acid to obtain lactic acid ester.
2. The esterification reaction is carried out in the presence of lactic acid ester, ethanol and lead acetate catalyst.
( )-ethyl D-lactate are generally safe under normal use and storage conditions, but the following matters still need to be noted:
-Avoid contact with skin and eyes: Wear protective gloves and glasses when using.
-Avoid inhalation and ingestion: Keep well ventilated and avoid contact with the substance when eating, drinking or smoking.
-Storage note: should be stored in a cool, dry, well-ventilated place, away from fire and oxidant.
-Waste disposal: Disposal in accordance with local regulations and do not dump into water sources or the natural environment.
The main properties of the
( )-ethyl D-lactate are as follows:
-Appearance: colorless liquid
-Solubility: Soluble in ethanol, ether and ketone solvents, insoluble in water
-Boiling point: about 148-150 degrees Celsius
-Melting point: about -7 degrees Celsius
-Density: about 1.085g/cm3
( )-ethyl D-lactate have many wide-ranging uses:
-Used as a solvent and intermediate: Due to its good solubility and reactivity,( )-ethyl D-lactate is often used as a solvent or intermediate in organic synthesis reactions.
-spices and food additives :( )-ethyl D-lactate has a unique strawberry flavor, so it is often used in the food and spice industry to add strawberry flavor.
-Pharmaceutical field:( )-Ethyl D-lactate can be used to prepare esters of some drugs for intravenous injection.
Preparation of ()-ethyl D-lactate can be done by the following steps:
1. D-lactic acid is reacted with anhydrous acetic acid to obtain lactic acid ester.
2. The esterification reaction is carried out in the presence of lactic acid ester, ethanol and lead acetate catalyst.
( )-ethyl D-lactate are generally safe under normal use and storage conditions, but the following matters still need to be noted:
-Avoid contact with skin and eyes: Wear protective gloves and glasses when using.
-Avoid inhalation and ingestion: Keep well ventilated and avoid contact with the substance when eating, drinking or smoking.
-Storage note: should be stored in a cool, dry, well-ventilated place, away from fire and oxidant.
-Waste disposal: Disposal in accordance with local regulations and do not dump into water sources or the natural environment.
Last Update：2024-04-09 21:04:16
